Noun Project API - PHP Example
<?php | |
require("OAuth.php"); | |
$cc_key = "CLIENT_KEY_HERE"; | |
$cc_secret = "CLIENT_SECRET_HERE"; | |
$url = "http://api.thenounproject.com/icons/happy"; | |
$args = array(); | |
$args["limit"] = 10; | |
$consumer = new OAuthConsumer($cc_key, $cc_secret); | |
$request = OAuthRequest::from_consumer_and_token($consumer, NULL,"GET", $url, $args); | |
$request->sign_request(new OAuthSignatureMethod_HMAC_SHA1(), $consumer, NULL); | |
$url = sprintf("%s?%s", $url, OAuthUtil::build_http_query($args)); | |
$ch = curl_init(); | |
$headers = array($request->to_header()); | |
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); | |
curl_setopt($ch, CURLOPT_URL, $url); | |
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); | |
$rsp = curl_exec($ch); | |
//$results = json_decode($rsp); | |
//print_r($results); | |
print_r($rsp) | |
?> |
<?php | |
// mirror of: http://oauth.googlecode.com/svn/code/php/OAuth.php | |
// vim: foldmethod=marker | |
/* Generic exception class | |
*/ | |
class OAuthException extends Exception { | |
// pass | |
} | |
class OAuthConsumer { | |
public $key; | |
public $secret; | |
function __construct($key, $secret, $callback_url=NULL) { | |
$this->key = $key; | |
$this->secret = $secret; | |
$this->callback_url = $callback_url; | |
} | |
function __toString() { | |
return "OAuthConsumer[key=$this->key,secret=$this->secret]"; | |
} | |
} | |
class OAuthToken { | |
// access tokens and request tokens | |
public $key; | |
public $secret; | |
/** | |
* key = the token | |
* secret = the token secret | |
*/ | |
function __construct($key, $secret) { | |
$this->key = $key; | |
$this->secret = $secret; | |
} | |
/** | |
* generates the basic string serialization of a token that a server | |
* would respond to request_token and access_token calls with | |
*/ | |
function to_string() { | |
return "oauth_token=" . | |
OAuthUtil::urlencode_rfc3986($this->key) . | |
"&oauth_token_secret=" . | |
OAuthUtil::urlencode_rfc3986($this->secret); | |
} | |
function __toString() { | |
return $this->to_string(); | |
} | |
} | |
/** | |
* A class for implementing a Signature Method | |
* See section 9 ("Signing Requests") in the spec | |
*/ | |
abstract class OAuthSignatureMethod { | |
/** | |
* Needs to return the name of the Signature Method (ie HMAC-SHA1) | |
* @return string | |
*/ | |
abstract public function get_name(); | |
/** | |
* Build up the signature | |
* NOTE: The output of this function MUST NOT be urlencoded. | |
* the encoding is handled in OAuthRequest when the final | |
* request is serialized | |
* @param OAuthRequest $request | |
* @param OAuthConsumer $consumer | |
* @param OAuthToken $token | |
* @return string | |
*/ | |
abstract public function build_signature($request, $consumer, $token); | |
/** | |
* Verifies that a given signature is correct | |
* @param OAuthRequest $request | |
* @param OAuthConsumer $consumer | |
* @param OAuthToken $token | |
* @param string $signature | |
* @return bool | |
*/ | |
public function check_signature($request, $consumer, $token, $signature) { | |
$built = $this->build_signature($request, $consumer, $token); | |
// Check for zero length, although unlikely here | |
if (strlen($built) == 0 || strlen($signature) == 0) { | |
return false; | |
} | |
if (strlen($built) != strlen($signature)) { | |
return false; | |
} | |
// Avoid a timing leak with a (hopefully) time insensitive compare | |
$result = 0; | |
for ($i = 0; $i < strlen($signature); $i++) { | |
$result |= ord($built{$i}) ^ ord($signature{$i}); | |
} | |
return $result == 0; | |
} | |
} | |
/** | |
* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104] | |
* where the Signature Base String is the text and the key is the concatenated values (each first | |
* encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&' | |
* character (ASCII code 38) even if empty. | |
* - Chapter 9.2 ("HMAC-SHA1") | |
*/ | |
class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod { | |
function get_name() { | |
return "HMAC-SHA1"; | |
} | |
public function build_signature($request, $consumer, $token) { | |
$base_string = $request->get_signature_base_string(); | |
$request->base_string = $base_string; | |
$key_parts = array( | |
$consumer->secret, | |
($token) ? $token->secret : "" | |
); | |
$key_parts = OAuthUtil::urlencode_rfc3986($key_parts); | |
$key = implode('&', $key_parts); | |
return base64_encode(hash_hmac('sha1', $base_string, $key, true)); | |
} | |
} | |
/** | |
* The PLAINTEXT method does not provide any security protection and SHOULD only be used | |
* over a secure channel such as HTTPS. It does not use the Signature Base String. | |
* - Chapter 9.4 ("PLAINTEXT") | |
*/ | |
class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod { | |
public function get_name() { | |
return "PLAINTEXT"; | |
} | |
/** | |
* oauth_signature is set to the concatenated encoded values of the Consumer Secret and | |
* Token Secret, separated by a '&' character (ASCII code 38), even if either secret is | |
* empty. The result MUST be encoded again. | |
* - Chapter 9.4.1 ("Generating Signatures") | |
* | |
* Please note that the second encoding MUST NOT happen in the SignatureMethod, as | |
* OAuthRequest handles this! | |
*/ | |
public function build_signature($request, $consumer, $token) { | |
$key_parts = array( | |
$consumer->secret, | |
($token) ? $token->secret : "" | |
); | |
$key_parts = OAuthUtil::urlencode_rfc3986($key_parts); | |
$key = implode('&', $key_parts); | |
$request->base_string = $key; | |
return $key; | |
} | |
} | |
/** | |
* The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in | |
* [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for | |
* EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a | |
* verified way to the Service Provider, in a manner which is beyond the scope of this | |
* specification. | |
* - Chapter 9.3 ("RSA-SHA1") | |
*/ | |
abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod { | |
public function get_name() { | |
return "RSA-SHA1"; | |
} | |
// Up to the SP to implement this lookup of keys. Possible ideas are: | |
// (1) do a lookup in a table of trusted certs keyed off of consumer | |
// (2) fetch via http using a url provided by the requester | |
// (3) some sort of specific discovery code based on request | |
// | |
// Either way should return a string representation of the certificate | |
protected abstract function fetch_public_cert(&$request); | |
// Up to the SP to implement this lookup of keys. Possible ideas are: | |
// (1) do a lookup in a table of trusted certs keyed off of consumer | |
// | |
// Either way should return a string representation of the certificate | |
protected abstract function fetch_private_cert(&$request); | |
public function build_signature($request, $consumer, $token) { | |
$base_string = $request->get_signature_base_string(); | |
$request->base_string = $base_string; | |
// Fetch the private key cert based on the request | |
$cert = $this->fetch_private_cert($request); | |
// Pull the private key ID from the certificate | |
$privatekeyid = openssl_get_privatekey($cert); | |
// Sign using the key | |
$ok = openssl_sign($base_string, $signature, $privatekeyid); | |
// Release the key resource | |
openssl_free_key($privatekeyid); | |
return base64_encode($signature); | |
} | |
public function check_signature($request, $consumer, $token, $signature) { | |
$decoded_sig = base64_decode($signature); | |
$base_string = $request->get_signature_base_string(); | |
// Fetch the public key cert based on the request | |
$cert = $this->fetch_public_cert($request); | |
// Pull the public key ID from the certificate | |
$publickeyid = openssl_get_publickey($cert); | |
// Check the computed signature against the one passed in the query | |
$ok = openssl_verify($base_string, $decoded_sig, $publickeyid); | |
// Release the key resource | |
openssl_free_key($publickeyid); | |
return $ok == 1; | |
} | |
} | |
class OAuthRequest { | |
protected $parameters; | |
protected $http_method; | |
protected $http_url; | |
// for debug purposes | |
public $base_string; | |
public static $version = '1.0'; | |
public static $POST_INPUT = 'php://input'; | |
function __construct($http_method, $http_url, $parameters=NULL) { | |
$parameters = ($parameters) ? $parameters : array(); | |
$parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters); | |
$this->parameters = $parameters; | |
$this->http_method = $http_method; | |
$this->http_url = $http_url; | |
} | |
/** | |
* attempt to build up a request from what was passed to the server | |
*/ | |
public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) { | |
$scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on") | |
? 'http' | |
: 'https'; | |
$http_url = ($http_url) ? $http_url : $scheme . | |
'://' . $_SERVER['SERVER_NAME'] . | |
':' . | |
$_SERVER['SERVER_PORT'] . | |
$_SERVER['REQUEST_URI']; | |
$http_method = ($http_method) ? $http_method : $_SERVER['REQUEST_METHOD']; | |
// We weren't handed any parameters, so let's find the ones relevant to | |
// this request. | |
// If you run XML-RPC or similar you should use this to provide your own | |
// parsed parameter-list | |
if (!$parameters) { | |
// Find request headers | |
$request_headers = OAuthUtil::get_headers(); | |
// Parse the query-string to find GET parameters | |
$parameters = OAuthUtil::parse_parameters($_SERVER['QUERY_STRING']); | |
// It's a POST request of the proper content-type, so parse POST | |
// parameters and add those overriding any duplicates from GET | |
if ($http_method == "POST" | |
&& isset($request_headers['Content-Type']) | |
&& strstr($request_headers['Content-Type'], | |
'application/x-www-form-urlencoded') | |
) { | |
$post_data = OAuthUtil::parse_parameters( | |
file_get_contents(self::$POST_INPUT) | |
); | |
$parameters = array_merge($parameters, $post_data); | |
} | |
// We have a Authorization-header with OAuth data. Parse the header | |
// and add those overriding any duplicates from GET or POST | |
if (isset($request_headers['Authorization']) && substr($request_headers['Authorization'], 0, 6) == 'OAuth ') { | |
$header_parameters = OAuthUtil::split_header( | |
$request_headers['Authorization'] | |
); | |
$parameters = array_merge($parameters, $header_parameters); | |
} | |
} | |
return new OAuthRequest($http_method, $http_url, $parameters); | |
} | |
/** | |
* pretty much a helper function to set up the request | |
*/ | |
public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) { | |
$parameters = ($parameters) ? $parameters : array(); | |
$defaults = array("oauth_version" => OAuthRequest::$version, | |
"oauth_nonce" => OAuthRequest::generate_nonce(), | |
"oauth_timestamp" => OAuthRequest::generate_timestamp(), | |
"oauth_consumer_key" => $consumer->key); | |
if ($token) | |
$defaults['oauth_token'] = $token->key; | |
$parameters = array_merge($defaults, $parameters); | |
return new OAuthRequest($http_method, $http_url, $parameters); | |
} | |
public function set_parameter($name, $value, $allow_duplicates = true) { | |
if ($allow_duplicates && isset($this->parameters[$name])) { | |
// We have already added parameter(s) with this name, so add to the list | |
if (is_scalar($this->parameters[$name])) { | |
// This is the first duplicate, so transform scalar (string) | |
// into an array so we can add the duplicates | |
$this->parameters[$name] = array($this->parameters[$name]); | |
} | |
$this->parameters[$name][] = $value; | |
} else { | |
$this->parameters[$name] = $value; | |
} | |
} | |
public function get_parameter($name) { | |
return isset($this->parameters[$name]) ? $this->parameters[$name] : null; | |
} | |
public function get_parameters() { | |
return $this->parameters; | |
} | |
public function unset_parameter($name) { | |
unset($this->parameters[$name]); | |
} | |
/** | |
* The request parameters, sorted and concatenated into a normalized string. | |
* @return string | |
*/ | |
public function get_signable_parameters() { | |
// Grab all parameters | |
$params = $this->parameters; | |
// Remove oauth_signature if present | |
// Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.") | |
if (isset($params['oauth_signature'])) { | |
unset($params['oauth_signature']); | |
} | |
return OAuthUtil::build_http_query($params); | |
} | |
/** | |
* Returns the base string of this request | |
* | |
* The base string defined as the method, the url | |
* and the parameters (normalized), each urlencoded | |
* and the concated with &. | |
*/ | |
public function get_signature_base_string() { | |
$parts = array( | |
$this->get_normalized_http_method(), | |
$this->get_normalized_http_url(), | |
$this->get_signable_parameters() | |
); | |
$parts = OAuthUtil::urlencode_rfc3986($parts); | |
return implode('&', $parts); | |
} | |
/** | |
* just uppercases the http method | |
*/ | |
public function get_normalized_http_method() { | |
return strtoupper($this->http_method); | |
} | |
/** | |
* parses the url and rebuilds it to be | |
* scheme://host/path | |
*/ | |
public function get_normalized_http_url() { | |
$parts = parse_url($this->http_url); | |
$scheme = (isset($parts['scheme'])) ? $parts['scheme'] : 'http'; | |
$port = (isset($parts['port'])) ? $parts['port'] : (($scheme == 'https') ? '443' : '80'); | |
$host = (isset($parts['host'])) ? strtolower($parts['host']) : ''; | |
$path = (isset($parts['path'])) ? $parts['path'] : ''; | |
if (($scheme == 'https' && $port != '443') | |
|| ($scheme == 'http' && $port != '80')) { | |
$host = "$host:$port"; | |
} | |
return "$scheme://$host$path"; | |
} | |
/** | |
* builds a url usable for a GET request | |
*/ | |
public function to_url() { | |
$post_data = $this->to_postdata(); | |
$out = $this->get_normalized_http_url(); | |
if ($post_data) { | |
$out .= '?'.$post_data; | |
} | |
return $out; | |
} | |
/** | |
* builds the data one would send in a POST request | |
*/ | |
public function to_postdata() { | |
return OAuthUtil::build_http_query($this->parameters); | |
} | |
/** | |
* builds the Authorization: header | |
*/ | |
public function to_header($realm=null) { | |
$first = true; | |
if($realm) { | |
$out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"'; | |
$first = false; | |
} else | |
$out = 'Authorization: OAuth'; | |
$total = array(); | |
foreach ($this->parameters as $k => $v) { | |
if (substr($k, 0, 5) != "oauth") continue; | |
if (is_array($v)) { | |
throw new OAuthException('Arrays not supported in headers'); | |
} | |
$out .= ($first) ? ' ' : ','; | |
$out .= OAuthUtil::urlencode_rfc3986($k) . | |
'="' . | |
OAuthUtil::urlencode_rfc3986($v) . | |
'"'; | |
$first = false; | |
} | |
return $out; | |
} | |
public function __toString() { | |
return $this->to_url(); | |
} | |
public function sign_request($signature_method, $consumer, $token) { | |
$this->set_parameter( | |
"oauth_signature_method", | |
$signature_method->get_name(), | |
false | |
); | |
$signature = $this->build_signature($signature_method, $consumer, $token); | |
$this->set_parameter("oauth_signature", $signature, false); | |
} | |
public function build_signature($signature_method, $consumer, $token) { | |
$signature = $signature_method->build_signature($this, $consumer, $token); | |
return $signature; | |
} | |
/** | |
* util function: current timestamp | |
*/ | |
private static function generate_timestamp() { | |
return time(); | |
} | |
/** | |
* util function: current nonce | |
*/ | |
private static function generate_nonce() { | |
$mt = microtime(); | |
$rand = mt_rand(); | |
return md5($mt . $rand); // md5s look nicer than numbers | |
} | |
} | |
class OAuthServer { | |
protected $timestamp_threshold = 300; // in seconds, five minutes | |
protected $version = '1.0'; // hi blaine | |
protected $signature_methods = array(); | |
protected $data_store; | |
function __construct($data_store) { | |
$this->data_store = $data_store; | |
} | |
public function add_signature_method($signature_method) { | |
$this->signature_methods[$signature_method->get_name()] = | |
$signature_method; | |
} | |
// high level functions | |
/** | |
* process a request_token request | |
* returns the request token on success | |
*/ | |
public function fetch_request_token(&$request) { | |
$this->get_version($request); | |
$consumer = $this->get_consumer($request); | |
// no token required for the initial token request | |
$token = NULL; | |
$this->check_signature($request, $consumer, $token); | |
// Rev A change | |
$callback = $request->get_parameter('oauth_callback'); | |
$new_token = $this->data_store->new_request_token($consumer, $callback); | |
return $new_token; | |
} | |
/** | |
* process an access_token request | |
* returns the access token on success | |
*/ | |
public function fetch_access_token(&$request) { | |
$this->get_version($request); | |
$consumer = $this->get_consumer($request); | |
// requires authorized request token | |
$token = $this->get_token($request, $consumer, "request"); | |
$this->check_signature($request, $consumer, $token); | |
// Rev A change | |
$verifier = $request->get_parameter('oauth_verifier'); | |
$new_token = $this->data_store->new_access_token($token, $consumer, $verifier); | |
return $new_token; | |
} | |
/** | |
* verify an api call, checks all the parameters | |
*/ | |
public function verify_request(&$request) { | |
$this->get_version($request); | |
$consumer = $this->get_consumer($request); | |
$token = $this->get_token($request, $consumer, "access"); | |
$this->check_signature($request, $consumer, $token); | |
return array($consumer, $token); | |
} | |
// Internals from here | |
/** | |
* version 1 | |
*/ | |
private function get_version(&$request) { | |
$version = $request->get_parameter("oauth_version"); | |
if (!$version) { | |
// Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present. | |
// Chapter 7.0 ("Accessing Protected Ressources") | |
$version = '1.0'; | |
} | |
if ($version !== $this->version) { | |
throw new OAuthException("OAuth version '$version' not supported"); | |
} | |
return $version; | |
} | |
/** | |
* figure out the signature with some defaults | |
*/ | |
private function get_signature_method($request) { | |
$signature_method = $request instanceof OAuthRequest | |
? $request->get_parameter("oauth_signature_method") | |
: NULL; | |
if (!$signature_method) { | |
// According to chapter 7 ("Accessing Protected Ressources") the signature-method | |
// parameter is required, and we can't just fallback to PLAINTEXT | |
throw new OAuthException('No signature method parameter. This parameter is required'); | |
} | |
if (!in_array($signature_method, | |
array_keys($this->signature_methods))) { | |
throw new OAuthException( | |
"Signature method '$signature_method' not supported " . | |
"try one of the following: " . | |
implode(", ", array_keys($this->signature_methods)) | |
); | |
} | |
return $this->signature_methods[$signature_method]; | |
} | |
/** | |
* try to find the consumer for the provided request's consumer key | |
*/ | |
private function get_consumer($request) { | |
$consumer_key = $request instanceof OAuthRequest | |
? $request->get_parameter("oauth_consumer_key") | |
: NULL; | |
if (!$consumer_key) { | |
throw new OAuthException("Invalid consumer key"); | |
} | |
$consumer = $this->data_store->lookup_consumer($consumer_key); | |
if (!$consumer) { | |
throw new OAuthException("Invalid consumer"); | |
} | |
return $consumer; | |
} | |
/** | |
* try to find the token for the provided request's token key | |
*/ | |
private function get_token($request, $consumer, $token_type="access") { | |
$token_field = $request instanceof OAuthRequest | |
? $request->get_parameter('oauth_token') | |
: NULL; | |
$token = $this->data_store->lookup_token( | |
$consumer, $token_type, $token_field | |
); | |
if (!$token) { | |
throw new OAuthException("Invalid $token_type token: $token_field"); | |
} | |
return $token; | |
} | |
/** | |
* all-in-one function to check the signature on a request | |
* should guess the signature method appropriately | |
*/ | |
private function check_signature($request, $consumer, $token) { | |
// this should probably be in a different method | |
$timestamp = $request instanceof OAuthRequest | |
? $request->get_parameter('oauth_timestamp') | |
: NULL; | |
$nonce = $request instanceof OAuthRequest | |
? $request->get_parameter('oauth_nonce') | |
: NULL; | |
$this->check_timestamp($timestamp); | |
$this->check_nonce($consumer, $token, $nonce, $timestamp); | |
$signature_method = $this->get_signature_method($request); | |
$signature = $request->get_parameter('oauth_signature'); | |
$valid_sig = $signature_method->check_signature( | |
$request, | |
$consumer, | |
$token, | |
$signature | |
); | |
if (!$valid_sig) { | |
throw new OAuthException("Invalid signature"); | |
} | |
} | |
/** | |
* check that the timestamp is new enough | |
*/ | |
private function check_timestamp($timestamp) { | |
if( ! $timestamp ) | |
throw new OAuthException( | |
'Missing timestamp parameter. The parameter is required' | |
); | |
// verify that timestamp is recentish | |
$now = time(); | |
if (abs($now - $timestamp) > $this->timestamp_threshold) { | |
throw new OAuthException( | |
"Expired timestamp, yours $timestamp, ours $now" | |
); | |
} | |
} | |
/** | |
* check that the nonce is not repeated | |
*/ | |
private function check_nonce($consumer, $token, $nonce, $timestamp) { | |
if( ! $nonce ) | |
throw new OAuthException( | |
'Missing nonce parameter. The parameter is required' | |
); | |
// verify that the nonce is uniqueish | |
$found = $this->data_store->lookup_nonce( | |
$consumer, | |
$token, | |
$nonce, | |
$timestamp | |
); | |
if ($found) { | |
throw new OAuthException("Nonce already used: $nonce"); | |
} | |
} | |
} | |
class OAuthDataStore { | |
function lookup_consumer($consumer_key) { | |
// implement me | |
} | |
function lookup_token($consumer, $token_type, $token) { | |
// implement me | |
} | |
function lookup_nonce($consumer, $token, $nonce, $timestamp) { | |
// implement me | |
} | |
function new_request_token($consumer, $callback = null) { | |
// return a new token attached to this consumer | |
} | |
function new_access_token($token, $consumer, $verifier = null) { | |
// return a new access token attached to this consumer | |
// for the user associated with this token if the request token | |
// is authorized | |
// should also invalidate the request token | |
} | |
} | |
class OAuthUtil { | |
public static function urlencode_rfc3986($input) { | |
if (is_array($input)) { | |
return array_map(array('OAuthUtil', 'urlencode_rfc3986'), $input); | |
} else if (is_scalar($input)) { | |
return str_replace( | |
'+', | |
' ', | |
str_replace('%7E', '~', rawurlencode($input)) | |
); | |
} else { | |
return ''; | |
} | |
} | |
// This decode function isn't taking into consideration the above | |
// modifications to the encoding process. However, this method doesn't | |
// seem to be used anywhere so leaving it as is. | |
public static function urldecode_rfc3986($string) { | |
return urldecode($string); | |
} | |
// Utility function for turning the Authorization: header into | |
// parameters, has to do some unescaping | |
// Can filter out any non-oauth parameters if needed (default behaviour) | |
// May 28th, 2010 - method updated to tjerk.meesters for a speed improvement. | |
// see http://code.google.com/p/oauth/issues/detail?id=163 | |
public static function split_header($header, $only_allow_oauth_parameters = true) { | |
$params = array(); | |
if (preg_match_all('/('.($only_allow_oauth_parameters ? 'oauth_' : '').'[a-z_-]*)=(:?"([^"]*)"|([^,]*))/', $header, $matches)) { | |
foreach ($matches[1] as $i => $h) { | |
$params[$h] = OAuthUtil::urldecode_rfc3986(empty($matches[3][$i]) ? $matches[4][$i] : $matches[3][$i]); | |
} | |
if (isset($params['realm'])) { | |
unset($params['realm']); | |
} | |
} | |
return $params; | |
} | |
// helper to try to sort out headers for people who aren't running apache | |
public static function get_headers() { | |
if (function_exists('apache_request_headers')) { | |
// we need this to get the actual Authorization: header | |
// because apache tends to tell us it doesn't exist | |
$headers = apache_request_headers(); | |
// sanitize the output of apache_request_headers because | |
// we always want the keys to be Cased-Like-This and arh() | |
// returns the headers in the same case as they are in the | |
// request | |
$out = array(); | |
foreach ($headers AS $key => $value) { | |
$key = str_replace( | |
" ", | |
"-", | |
ucwords(strtolower(str_replace("-", " ", $key))) | |
); | |
$out[$key] = $value; | |
} | |
} else { | |
// otherwise we don't have apache and are just going to have to hope | |
// that $_SERVER actually contains what we need | |
$out = array(); | |
if( isset($_SERVER['CONTENT_TYPE']) ) | |
$out['Content-Type'] = $_SERVER['CONTENT_TYPE']; | |
if( isset($_ENV['CONTENT_TYPE']) ) | |
$out['Content-Type'] = $_ENV['CONTENT_TYPE']; | |
foreach ($_SERVER as $key => $value) { | |
if (substr($key, 0, 5) == "HTTP_") { | |
// this is chaos, basically it is just there to capitalize the first | |
// letter of every word that is not an initial HTTP and strip HTTP | |
// code from przemek | |
$key = str_replace( | |
" ", | |
"-", | |
ucwords(strtolower(str_replace("_", " ", substr($key, 5)))) | |
); | |
$out[$key] = $value; | |
} | |
} | |
} | |
return $out; | |
} | |
// This function takes a input like a=b&a=c&d=e and returns the parsed | |
// parameters like this | |
// array('a' => array('b','c'), 'd' => 'e') | |
public static function parse_parameters( $input ) { | |
if (!isset($input) || !$input) return array(); | |
$pairs = explode('&', $input); | |
$parsed_parameters = array(); | |
foreach ($pairs as $pair) { | |
$split = explode('=', $pair, 2); | |
$parameter = OAuthUtil::urldecode_rfc3986($split[0]); | |
$value = isset($split[1]) ? OAuthUtil::urldecode_rfc3986($split[1]) : ''; | |
if (isset($parsed_parameters[$parameter])) { | |
// We have already recieved parameter(s) with this name, so add to the list | |
// of parameters with this name | |
if (is_scalar($parsed_parameters[$parameter])) { | |
// This is the first duplicate, so transform scalar (string) into an array | |
// so we can add the duplicates | |
$parsed_parameters[$parameter] = array($parsed_parameters[$parameter]); | |
} | |
$parsed_parameters[$parameter][] = $value; | |
} else { | |
$parsed_parameters[$parameter] = $value; | |
} | |
} | |
return $parsed_parameters; | |
} | |
public static function build_http_query($params) { | |
if (!$params) return ''; | |
// Urlencode both keys and values | |
$keys = OAuthUtil::urlencode_rfc3986(array_keys($params)); | |
$values = OAuthUtil::urlencode_rfc3986(array_values($params)); | |
$params = array_combine($keys, $values); | |
// Parameters are sorted by name, using lexicographical byte value ordering. | |
// Ref: Spec: 9.1.1 (1) | |
uksort($params, 'strcmp'); | |
$pairs = array(); | |
foreach ($params as $parameter => $value) { | |
if (is_array($value)) { | |
// If two or more parameters share the same name, they are sorted by their value | |
// Ref: Spec: 9.1.1 (1) | |
// June 12th, 2010 - changed to sort because of issue 164 by hidetaka | |
sort($value, SORT_STRING); | |
foreach ($value as $duplicate_value) { | |
$pairs[] = $parameter . '=' . $duplicate_value; | |
} | |
} else { | |
$pairs[] = $parameter . '=' . $value; | |
} | |
} | |
// For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61) | |
// Each name-value pair is separated by an '&' character (ASCII code 38) | |
return implode('&', $pairs); | |
} | |
} | |
?> |
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@hassaan-dev thanks for letting me know, the gist is now updated to include OAuth.php |
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The library link "http://oauth.googlecode.com/svn/code/php/OAuth.php" is unavailable
Can you please update this link?