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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Http
* @subpackage Client
* @version $Id: Client.php 8064 2008-02-16 10:58:39Z thomas $
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
require_once 'external/Zend/Loader.php';
require_once 'external/Zend/Uri.php';
require_once 'external/Zend/Http/Client/Adapter/Interface.php';
require_once 'external/Zend/Http/Response.php';
/**
* Zend_Http_Client is an implemetation of an HTTP client in PHP. The client
* supports basic features like sending different HTTP requests and handling
* redirections, as well as more advanced features like proxy settings, HTTP
* authentication and cookie persistance (using a Zend_Http_CookieJar object)
*
* @todo Implement proxy settings
* @category Zend
* @package Zend_Http
* @subpackage Client
* @throws Zend_Http_Client_Exception
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Http_Client {
/**
* HTTP request methods
*/
const GET = 'GET';
const POST = 'POST';
const PUT = 'PUT';
const HEAD = 'HEAD';
const DELETE = 'DELETE';
const TRACE = 'TRACE';
const OPTIONS = 'OPTIONS';
const CONNECT = 'CONNECT';
/**
* Supported HTTP Authentication methods
*/
const AUTH_BASIC = 'basic';
//const AUTH_DIGEST = 'digest'; <-- not implemented yet
/**
* HTTP protocol versions
*/
const HTTP_1 = '1.1';
const HTTP_0 = '1.0';
/**
* POST data encoding methods
*/
const ENC_URLENCODED = 'application/x-www-form-urlencoded';
const ENC_FORMDATA = 'multipart/form-data';
/**
* Configuration array, set using the constructor or using ::setConfig()
*
* @var unknown_type
*/
protected $config = array('maxredirects' => 5, 'strictredirects' => false,
'useragent' => 'Zend_Http_Client', 'timeout' => 10,
'adapter' => 'Zend_Http_Client_Adapter_Socket', 'httpversion' => self::HTTP_1,
'keepalive' => false, 'storeresponse' => true, 'strict' => true);
/**
* The adapter used to preform the actual connection to the server
*
* @var Zend_Http_Client_Adapter_Interface
*/
protected $adapter = null;
/**
* Request URI
*
* @var Zend_Uri_Http
*/
protected $uri;
/**
* Associative array of request headers
*
* @var array
*/
protected $headers = array();
/**
* HTTP request method
*
* @var string
*/
protected $method = self::GET;
/**
* Associative array of GET parameters
*
* @var array
*/
protected $paramsGet = array();
/**
* Assiciative array of POST parameters
*
* @var array
*/
protected $paramsPost = array();
/**
* Request body content type (for POST requests)
*
* @var string
*/
protected $enctype = null;
/**
* The raw post data to send. Could be set by setRawData($data, $enctype).
*
* @var string
*/
protected $raw_post_data = null;
/**
* HTTP Authentication settings
*
* Expected to be an associative array with this structure:
* $this->auth = array('user' => 'username', 'password' => 'password', 'type' => 'basic')
* Where 'type' should be one of the supported authentication types (see the AUTH_*
* constants), for example 'basic' or 'digest'.
*
* If null, no authentication will be used.
*
* @var array|null
*/
protected $auth;
/**
* File upload arrays (used in POST requests)
*
* An associative array, where each element is of the format:
* 'name' => array('filename.txt', 'text/plain', 'This is the actual file contents')
*
* @var array
*/
protected $files = array();
/**
* The client's cookie jar
*
* @var Zend_Http_CookieJar
*/
protected $cookiejar = null;
/**
* The last HTTP request sent by the client, as string
*
* @var string
*/
protected $last_request = null;
/**
* The last HTTP response received by the client
*
* @var Zend_Http_Response
*/
protected $last_response = null;
/**
* Redirection counter
*
* @var int
*/
protected $redirectCounter = 0;
/**
* Contructor method. Will create a new HTTP client. Accepts the target
* URL and optionally and array of headers.
*
* @param Zend_Uri_Http|string $uri
* @param array $headers Optional request headers to set
*/
public function __construct($uri = null, $config = null) {
if ($uri !== null) $this->setUri($uri);
if ($config !== null) $this->setConfig($config);
}
/**
* Set the URI for the next request
*
* @param Zend_Uri_Http|string $uri
* @return Zend_Http_Client
* @throws Zend_Http_Client_Exception
*/
public function setUri($uri) {
if (is_string($uri)) {
$uri = Zend_Uri::factory($uri);
}
if (! $uri instanceof Zend_Uri_Http) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('Passed parameter is not a valid HTTP URI.');
}
// We have no ports, set the defaults
if (! $uri->getPort()) {
$uri->setPort(($uri->getScheme() == 'https' ? 443 : 80));
}
$this->uri = $uri;
return $this;
}
/**
* Get the URI for the next request
*
* @param boolean $as_string If true, will return the URI as a string
* @return Zend_Uri_Http|string
*/
public function getUri($as_string = false) {
if ($as_string && $this->uri instanceof Zend_Uri_Http) {
return $this->uri->__toString();
} else {
return $this->uri;
}
}
/**
* Set configuration parameters for this HTTP client
*
* @param array $config
* @return Zend_Http_Client
*/
public function setConfig($config = array()) {
if (! is_array($config)) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('Expected array parameter, given ' . gettype($config));
}
foreach ($config as $k => $v)
$this->config[strtolower($k)] = $v;
return $this;
}
/**
* Set the next request's method
*
* Validated the passed method and sets it. If we have files set for
* POST requests, and the new method is not POST, the files are silently
* dropped.
*
* @param string $method
* @return Zend_Http_Client
*/
public function setMethod($method = self::GET) {
if (! preg_match('/^[A-Za-z_]+$/', $method)) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("'{$method}' is not a valid HTTP request method.");
}
if ($method == self::POST && $this->enctype === null) $this->setEncType(self::ENC_URLENCODED);
$this->method = $method;
return $this;
}
/**
* Set one or more request headers
*
* This function can be used in several ways to set the client's request
* headers:
* 1. By providing two parameters: $name as the header to set (eg. 'Host')
* and $value as it's value (eg. 'www.example.com').
* 2. By providing a single header string as the only parameter
* eg. 'Host: www.example.com'
* 3. By providing an array of headers as the first parameter
* eg. array('host' => 'www.example.com', 'x-foo: bar'). In This case
* the function will call itself recursively for each array item.
*
* @param string|array $name Header name, full header string ('Header: value')
* or an array of headers
* @param mixed $value Header value or null
* @return Zend_Http_Client
*/
public function setHeaders($name, $value = null) {
// If we got an array, go recusive!
if (is_array($name)) {
foreach ($name as $k => $v) {
if (is_string($k)) {
$this->setHeaders($k, $v);
} else {
$this->setHeaders($v, null);
}
}
} else {
// Check if $name needs to be split
if ($value === null && (strpos($name, ':') > 0)) list($name, $value) = explode(':', $name, 2);
// Make sure the name is valid if we are in strict mode
if ($this->config['strict'] && (! preg_match('/^[a-zA-Z0-9-]+$/', $name))) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("{$name} is not a valid HTTP header name");
}
$normalized_name = strtolower($name);
// If $value is null or false, unset the header
if ($value === null || $value === false) {
unset($this->headers[$normalized_name]);
// Else, set the header
} else {
// Header names are storred lowercase internally.
if (is_string($value)) $value = trim($value);
$this->headers[$normalized_name] = array($name, $value);
}
}
return $this;
}
/**
* Get the value of a specific header
*
* Note that if the header has more than one value, an array
* will be returned.
*
* @param unknown_type $key
* @return string|array|null The header value or null if it is not set
*/
public function getHeader($key) {
$key = strtolower($key);
if (isset($this->headers[$key])) {
return $this->headers[$key][1];
} else {
return null;
}
}
/**
* Set a GET parameter for the request. Wrapper around _setParameter
*
* @param string|array $name
* @param string $value
* @return Zend_Http_Client
*/
public function setParameterGet($name, $value = null) {
if (is_array($name)) {
foreach ($name as $k => $v)
$this->_setParameter('GET', $k, $v);
} else {
$this->_setParameter('GET', $name, $value);
}
return $this;
}
/**
* Set a POST parameter for the request. Wrapper around _setParameter
*
* @param string|array $name
* @param string $value
* @return Zend_Http_Client
*/
public function setParameterPost($name, $value = null) {
if (is_array($name)) {
foreach ($name as $k => $v)
$this->_setParameter('POST', $k, $v);
} else {
$this->_setParameter('POST', $name, $value);
}
return $this;
}
/**
* Set a GET or POST parameter - used by SetParameterGet and SetParameterPost
*
* @param string $type GET or POST
* @param string $name
* @param string $value
*/
protected function _setParameter($type, $name, $value) {
$parray = array();
$type = strtolower($type);
switch ($type) {
case 'get':
$parray = &$this->paramsGet;
break;
case 'post':
$parray = &$this->paramsPost;
break;
}
if ($value === null) {
if (isset($parray[$name])) unset($parray[$name]);
} else {
$parray[$name] = $value;
}
}
/**
* Get the number of redirections done on the last request
*
* @return int
*/
public function getRedirectionsCount() {
return $this->redirectCounter;
}
/**
* Set HTTP authentication parameters
*
* $type should be one of the supported types - see the self::AUTH_*
* constants.
*
* To enable authentication:
* <code>
* $this->setAuth('shahar', 'secret', Zend_Http_Client::AUTH_BASIC);
* </code>
*
* To disable authentication:
* <code>
* $this->setAuth(false);
* </code>
*
* @see http://www.faqs.org/rfcs/rfc2617.html
* @param string|false $user User name or false disable authentication
* @param string $password Password
* @param string $type Authentication type
* @return Zend_Http_Client
*/
public function setAuth($user, $password = '', $type = self::AUTH_BASIC) {
// If we got false or null, disable authentication
if ($user === false || $user === null) {
$this->auth = null;
// Else, set up authentication
} else {
// Check we got a proper authentication type
if (! defined('self::AUTH_' . strtoupper($type))) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("Invalid or not supported authentication type: '$type'");
}
$this->auth = array('user' => (string)$user, 'password' => (string)$password,
'type' => $type);
}
return $this;
}
/**
* Set the HTTP client's cookie jar.
*
* A cookie jar is an object that holds and maintains cookies across HTTP requests
* and responses.
*
* @param Zend_Http_CookieJar|boolean $cookiejar Existing cookiejar object, true to create a new one, false to disable
* @return Zend_Http_Client
*/
public function setCookieJar($cookiejar = true) {
if (! class_exists('Zend_Http_CookieJar')) require_once 'external/Zend/Http/CookieJar.php';
if ($cookiejar instanceof Zend_Http_CookieJar) {
$this->cookiejar = $cookiejar;
} elseif ($cookiejar === true) {
$this->cookiejar = new Zend_Http_CookieJar();
} elseif (! $cookiejar) {
$this->cookiejar = null;
} else {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('Invalid parameter type passed as CookieJar');
}
return $this;
}
/**
* Return the current cookie jar or null if none.
*
* @return Zend_Http_CookieJar|null
*/
public function getCookieJar() {
return $this->cookiejar;
}
/**
* Add a cookie to the request. If the client has no Cookie Jar, the cookies
* will be added directly to the headers array as "Cookie" headers.
*
* @param Zend_Http_Cookie|string $cookie
* @param string|null $value If "cookie" is a string, this is the cookie value.
* @return Zend_Http_Client
*/
public function setCookie($cookie, $value = null) {
if (! class_exists('Zend_Http_Cookie')) require_once 'external/Zend/Http/Cookie.php';
if (is_array($cookie)) {
foreach ($cookie as $c => $v) {
if (is_string($c)) {
$this->setCookie($c, $v);
} else {
$this->setCookie($v);
}
}
return $this;
}
if ($value !== null) $value = urlencode($value);
if (isset($this->cookiejar)) {
if ($cookie instanceof Zend_Http_Cookie) {
$this->cookiejar->addCookie($cookie);
} elseif (is_string($cookie) && $value !== null) {
$cookie = Zend_Http_Cookie::fromString("{$cookie}={$value}", $this->uri);
$this->cookiejar->addCookie($cookie);
}
} else {
if ($cookie instanceof Zend_Http_Cookie) {
$name = $cookie->getName();
$value = $cookie->getValue();
$cookie = $name;
}
if (preg_match("/[=,; \t\r\n\013\014]/", $cookie)) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("Cookie name cannot contain these characters: =,; \t\r\n\013\014 ({$cookie})");
}
$value = addslashes($value);
if (! isset($this->headers['cookie'])) $this->headers['cookie'] = array('Cookie', '');
$this->headers['cookie'][1] .= $cookie . '=' . $value . '; ';
}
return $this;
}
/**
* Set a file to upload (using a POST request)
*
* Can be used in two ways:
*
* 1. $data is null (default): $filename is treated as the name if a local file which
* will be read and sent. Will try to guess the content type using mime_content_type().
* 2. $data is set - $filename is sent as the file name, but $data is sent as the file
* contents and no file is read from the file system. In this case, you need to
* manually set the content-type ($ctype) or it will default to
* application/octet-stream.
*
* @param string $filename Name of file to upload, or name to save as
* @param string $formname Name of form element to send as
* @param string $data Data to send (if null, $filename is read and sent)
* @param string $ctype Content type to use (if $data is set and $ctype is
* null, will be application/octet-stream)
* @return Zend_Http_Client
*/
public function setFileUpload($filename, $formname, $data = null, $ctype = null) {
if ($data === null) {
if (($data = @file_get_contents($filename)) === false) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("Unable to read file '{$filename}' for upload");
}
if (! $ctype && function_exists('mime_content_type')) $ctype = mime_content_type($filename);
}
// Force enctype to multipart/form-data
$this->setEncType(self::ENC_FORMDATA);
if ($ctype === null) $ctype = 'application/octet-stream';
$this->files[$formname] = array(basename($filename), $ctype, $data);
return $this;
}
/**
* Set the encoding type for POST data
*
* @param string $enctype
* @return Zend_Http_Client
*/
public function setEncType($enctype = self::ENC_URLENCODED) {
$this->enctype = $enctype;
return $this;
}
/**
* Set the raw (already encoded) POST data.
*
* This function is here for two reasons:
* 1. For advanced user who would like to set their own data, already encoded
* 2. For backwards compatibilty: If someone uses the old post($data) method.
* this method will be used to set the encoded data.
*
* @param string $data
* @param string $enctype
* @return Zend_Http_Client
*/
public function setRawData($data, $enctype = null) {
$this->raw_post_data = $data;
$this->setEncType($enctype);
return $this;
}
/**
* Clear all GET and POST parameters
*
* Should be used to reset the request parameters if the client is
* used for several concurrent requests.
*
* @return Zend_Http_Client
*/
public function resetParameters() {
// Reset parameter data
$this->paramsGet = array();
$this->paramsPost = array();
$this->files = array();
$this->raw_post_data = null;
// Clear outdated headers
if (isset($this->headers['content-type'])) unset($this->headers['content-type']);
if (isset($this->headers['content-length'])) unset($this->headers['content-length']);
return $this;
}
/**
* Get the last HTTP request as string
*
* @return string
*/
public function getLastRequest() {
return $this->last_request;
}
/**
* Get the last HTTP response received by this client
*
* If $config['storeresponse'] is set to false, or no response was
* stored yet, will return null
*
* @return Zend_Http_Response or null if none
*/
public function getLastResponse() {
return $this->last_response;
}
/**
* Load the connection adapter
*
* While this method is not called more than one for a client, it is
* seperated from ->request() to preserve logic and readability
*
* @param Zend_Http_Client_Adapter_Interface|string $adapter
*/
public function setAdapter($adapter) {
if (is_string($adapter)) {
try {
Zend_Loader::loadClass($adapter);
} catch (Zend_Exception $e) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("Unable to load adapter '$adapter': {$e->getMessage()}");
}
$adapter = new $adapter();
}
if (! $adapter instanceof Zend_Http_Client_Adapter_Interface) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('Passed adapter is not a HTTP connection adapter');
}
$this->adapter = $adapter;
$config = $this->config;
unset($config['adapter']);
$this->adapter->setConfig($config);
}
/**
* Send the HTTP request and return an HTTP response object
*
* @param string $method
* @return Zend_Http_Response
*/
public function request($method = null) {
if (! $this->uri instanceof Zend_Uri_Http) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('No valid URI has been passed to the client');
}
if ($method) $this->setMethod($method);
$this->redirectCounter = 0;
$response = null;
// Make sure the adapter is loaded
if ($this->adapter == null) $this->setAdapter($this->config['adapter']);
// Send the first request. If redirected, continue.
do {
// Clone the URI and add the additional GET parameters to it
$uri = clone $this->uri;
if (! empty($this->paramsGet)) {
$query = $uri->getQuery();
if (! empty($query)) $query .= '&';
$query .= http_build_query($this->paramsGet, null, '&');
$uri->setQuery($query);
}
$body = $this->prepare_body();
$headers = $this->prepare_headers();
// Open the connection, send the request and read the response
$this->adapter->connect($uri->getHost(), $uri->getPort(), ($uri->getScheme() == 'https' ? true : false));
$this->last_request = $this->adapter->write($this->method, $uri, $this->config['httpversion'], $headers, $body);
$response = $this->adapter->read();
if (! $response) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception('Unable to read response, or response is empty');
}
$response = Zend_Http_Response::fromString($response);
if ($this->config['storeresponse']) $this->last_response = $response;
// Load cookies into cookie jar
if (isset($this->cookiejar)) $this->cookiejar->addCookiesFromResponse($response, $uri);
// If we got redirected, look for the Location header
if ($response->isRedirect() && ($location = $response->getHeader('location'))) {
// Check whether we send the exact same request again, or drop the parameters
// and send a GET request
if ($response->getStatus() == 303 || ((! $this->config['strictredirects']) && ($response->getStatus() == 302 || $response->getStatus() == 301))) {
$this->resetParameters();
$this->setMethod(self::GET);
}
// If we got a well formed absolute URI
if (Zend_Uri_Http::check($location)) {
$this->setHeaders('host', null);
$this->setUri($location);
} else {
// Split into path and query and set the query
if (strpos($location, '?') !== false) {
list($location, $query) = explode('?', $location, 2);
} else {
$query = '';
}
$this->uri->setQuery($query);
// Else, if we got just an absolute path, set it
if (strpos($location, '/') === 0) {
$this->uri->setPath($location);
// Else, assume we have a relative path
} else {
// Get the current path directory, removing any trailing slashes
$path = $this->uri->getPath();
$path = rtrim(substr($path, 0, strrpos($path, '/')), "/");
$this->uri->setPath($path . '/' . $location);
}
}
++ $this->redirectCounter;
} else {
// If we didn't get any location, stop redirecting
break;
}
} while ($this->redirectCounter < $this->config['maxredirects']);
return $response;
}
/**
* Prepare the request headers
*
* @return array
*/
protected function prepare_headers() {
$headers = array();
// Set the host header
if (! isset($this->headers['host'])) {
$host = $this->uri->getHost();
// If the port is not default, add it
if (! (($this->uri->getScheme() == 'http' && $this->uri->getPort() == 80) || ($this->uri->getScheme() == 'https' && $this->uri->getPort() == 443))) {
$host .= ':' . $this->uri->getPort();
}
$headers[] = "Host: {$host}";
}
// Set the connection header
if (! isset($this->headers['connection'])) {
if (! $this->config['keepalive']) $headers[] = "Connection: close";
}
// Set the Accept-encoding header if not set - depending on whether
// zlib is available or not.
if (! isset($this->headers['accept-encoding'])) {
if (function_exists('gzinflate')) {
$headers[] = 'Accept-encoding: gzip, deflate';
} else {
$headers[] = 'Accept-encoding: identity';
}
}
// Set the content-type header
if ($this->method == self::POST && (! isset($this->headers['content-type']) && isset($this->enctype))) {
$headers[] = "Content-type: {$this->enctype}";
}
// Set the user agent header
if (! isset($this->headers['user-agent']) && isset($this->config['useragent'])) {
$headers[] = "User-agent: {$this->config['useragent']}";
}
// Set HTTP authentication if needed
if (is_array($this->auth)) {
$auth = self::encodeAuthHeader($this->auth['user'], $this->auth['password'], $this->auth['type']);
$headers[] = "Authorization: {$auth}";
}
// Load cookies from cookie jar
if (isset($this->cookiejar)) {
$cookstr = $this->cookiejar->getMatchingCookies($this->uri, true, Zend_Http_CookieJar::COOKIE_STRING_CONCAT);
if ($cookstr) $headers[] = "Cookie: {$cookstr}";
}
// Add all other user defined headers
foreach ($this->headers as $header) {
list($name, $value) = $header;
if (is_array($value)) $value = implode(', ', $value);
$headers[] = "$name: $value";
}
return $headers;
}
/**
* Prepare the request body (for POST and PUT requests)
*
* @return string
*/
protected function prepare_body() {
// According to RFC2616, a TRACE request should not have a body.
if ($this->method == self::TRACE) {
return '';
}
// If we have raw_post_data set, just use it as the body.
if (isset($this->raw_post_data)) {
$this->setHeaders('Content-length', strlen($this->raw_post_data));
return $this->raw_post_data;
}
$body = '';
// If we have files to upload, force enctype to multipart/form-data
if (count($this->files) > 0) $this->setEncType(self::ENC_FORMDATA);
// If we have POST parameters or files, encode and add them to the body
if (count($this->paramsPost) > 0 || count($this->files) > 0) {
switch ($this->enctype) {
case self::ENC_FORMDATA:
// Encode body as multipart/form-data
$boundary = '---ZENDHTTPCLIENT-' . md5(microtime());
$this->setHeaders('Content-type', self::ENC_FORMDATA . "; boundary={$boundary}");
// Get POST parameters and encode them
$params = $this->_getParametersRecursive($this->paramsPost);
foreach ($params as $pp) {
$body .= self::encodeFormData($boundary, $pp[0], $pp[1]);
}
// Encode files
foreach ($this->files as $name => $file) {
$fhead = array('Content-type' => $file[1]);
$body .= self::encodeFormData($boundary, $name, $file[2], $file[0], $fhead);
}
$body .= "--{$boundary}--\r\n";
break;
case self::ENC_URLENCODED:
// Encode body as application/x-www-form-urlencoded
$this->setHeaders('Content-type', self::ENC_URLENCODED);
$body = http_build_query($this->paramsPost, '', '&');
break;
default:
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("Cannot handle content type '{$this->enctype}' automatically." . " Please use Zend_Http_Client::setRawData to send this kind of content.");
break;
}
}
if ($body) $this->setHeaders('Content-length', strlen($body));
return $body;
}
/**
* Helper method that gets a possibly multi-level parameters array (get or
* post) and flattens it.
*
* The method returns an array of (key, value) pairs (because keys are not
* necessarily unique. If one of the parameters in as array, it will also
* add a [] suffix to the key.
*
* @param array $parray The parameters array
* @param bool $urlencode Whether to urlencode the name and value
* @return array
*/
protected function _getParametersRecursive($parray, $urlencode = false) {
if (! is_array($parray)) return $parray;
$parameters = array();
foreach ($parray as $name => $value) {
if ($urlencode) $name = urlencode($name);
// If $value is an array, iterate over it
if (is_array($value)) {
$name .= ($urlencode ? '%5B%5D' : '[]');
foreach ($value as $subval) {
if ($urlencode) $subval = urlencode($subval);
$parameters[] = array($name, $subval);
}
} else {
if ($urlencode) $value = urlencode($value);
$parameters[] = array($name, $value);
}
}
return $parameters;
}
/**
* Encode data to a multipart/form-data part suitable for a POST request.
*
* @param string $boundary
* @param string $name
* @param mixed $value
* @param string $filename
* @param array $headers Associative array of optional headers @example ("Content-transfer-encoding" => "binary")
* @return string
*/
public static function encodeFormData($boundary, $name, $value, $filename = null, $headers = array()) {
$ret = "--{$boundary}\r\n" . 'Content-disposition: form-data; name="' . $name . '"';
if ($filename) $ret .= '; filename="' . $filename . '"';
$ret .= "\r\n";
foreach ($headers as $hname => $hvalue) {
$ret .= "{$hname}: {$hvalue}\r\n";
}
$ret .= "\r\n";
$ret .= "{$value}\r\n";
return $ret;
}
/**
* Create a HTTP authentication "Authorization:" header according to the
* specified user, password and authentication method.
*
* @see http://www.faqs.org/rfcs/rfc2617.html
* @param string $user
* @param string $password
* @param string $type
* @return string
*/
public static function encodeAuthHeader($user, $password, $type = self::AUTH_BASIC) {
$authHeader = null;
switch ($type) {
case self::AUTH_BASIC:
// In basic authentication, the user name cannot contain ":"
if (strpos($user, ':') !== false) {
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("The user name cannot contain ':' in 'Basic' HTTP authentication");
}
$authHeader = 'Basic ' . base64_encode($user . ':' . $password);
break;
//case self::AUTH_DIGEST:
/**
* @todo Implement digest authentication
*/
// break;
default:
require_once 'external/Zend/Http/Client/Exception.php';
throw new Zend_Http_Client_Exception("Not a supported HTTP authentication type: '$type'");
}
return $authHeader;
}
}
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