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adding existing version;

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commit 14b0c80c5a6b7469572f0eff8bf552b2912d740a 1 parent f08cd6a
@jeckman authored
Showing with 2,039 additions and 0 deletions.
  1. +878 −0 OAuth.php
  2. +674 −0 gpl.txt
  3. +238 −0 retweeter.php
  4. +249 −0 twitteroauth.php
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878 OAuth.php
@@ -0,0 +1,878 @@
+<?php
+// vim: foldmethod=marker
+
+if (!class_exists('OAuthException')) {
+
+/* 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);
+ return $built == $signature;
+ }
+}
+
+/**
+ * The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
+ * where the Signature Base String is the text and the key is the concatenated values (each first
+ * encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
+ * character (ASCII code 38) even if empty.
+ * - Chapter 9.2 ("HMAC-SHA1")
+ */
+class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
+ function get_name() {
+ return "HMAC-SHA1";
+ }
+
+ public function build_signature($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 {
+ private $parameters;
+ private $http_method;
+ private $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 or $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 or $http_url = $scheme .
+ '://' . $_SERVER['HTTP_HOST'] .
+ ':' .
+ $_SERVER['SERVER_PORT'] .
+ $_SERVER['REQUEST_URI'];
+ @$http_method or $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 ($http_method == "POST"
+ && @strstr($request_headers["Content-Type"],
+ "application/x-www-form-urlencoded")
+ ) {
+ $post_data = OAuthUtil::parse_parameters(
+ file_get_contents(self::$POST_INPUT)
+ );
+ $parameters = array_merge($parameters, $post_data);
+ }
+
+ // We have a Authorization-header with OAuth data. Parse the header
+ // and add those overriding any duplicates from GET or POST
+ if (@substr($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 or $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);
+
+ $port = @$parts['port'];
+ $scheme = $parts['scheme'];
+ $host = $parts['host'];
+ $path = @$parts['path'];
+
+ $port or $port = ($scheme == 'https') ? '443' : '80';
+
+ 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->get_parameter("oauth_signature_method");
+
+ 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->get_parameter("oauth_consumer_key");
+ 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->get_parameter('oauth_token');
+ $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->get_parameter('oauth_timestamp');
+ $nonce = @$request->get_parameter('oauth_nonce');
+
+ $this->check_timestamp($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($string);
+ }
+
+ // Utility function for turning the Authorization: header into
+ // parameters, has to do some unescaping
+ // Can filter out any non-oauth parameters if needed (default behaviour)
+ public static function split_header($header, $only_allow_oauth_parameters = true) {
+ $pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/';
+ $offset = 0;
+ $params = array();
+ while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) {
+ $match = $matches[0];
+ $header_name = $matches[2][0];
+ $header_content = (isset($matches[5])) ? $matches[5][0] : $matches[4][0];
+ if (preg_match('/^oauth_/', $header_name) || !$only_allow_oauth_parameters) {
+ $params[$header_name] = OAuthUtil::urldecode_rfc3986($header_content);
+ }
+ $offset = $match[1] + strlen($match[0]);
+ }
+
+ 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)
+ natsort($value);
+ foreach ($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);
+ }
+}
+
+} // class_exists check
+
+?>
View
674 gpl.txt
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
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+
+ The licenses for most software and other practical works are designed
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+
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+
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+
+ Developers that use the GNU GPL protect your rights with two steps:
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+
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+
+ TERMS AND CONDITIONS
+
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+
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+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
View
238 retweeter.php
@@ -0,0 +1,238 @@
+<?php
+/*
+ ======================================================================
+ Retweeter 1.1 - Creating Twitter Groups
+
+ 1.1.1 Update: Twitter's tweet IDs and user IDs have grown in length such
+ that the existing database column for PostId (which is a combination
+ of user id and tweet id) needs to be lengthened. You can do this
+ just by altering the PostId column to varchar(30) - so the only
+ update here is in the bundled SQL scripts.
+
+ 1.1 Update: Added use of Twitter's native retweet API - REQUIRES DATABASE
+ CHANGE - see readme. Thanks to Cody Wilson of QC Co-Lab
+ (https://www.qccolab.com/) for the patch.
+ Also updated to store the md5 hash in the database rather than rehashing
+ (literally) each time.
+ Finally, corrected project url in readme and main php file. (Thanks Will
+ Bradley).
+
+ 1.0 Update: Added OAuth. You will need to register your application and get
+ appropriate consumer secret and token, as well as an OAuth token and
+ secret for your specific user.
+ Also added rt and @ to original user
+
+ 0.9.5 Update: Fix for situations in which user's screen name may have different
+ case than string entered in Retweeter. Patch provided by Will Bradley
+ <http://willbradley.name/>.
+
+ 0.9.4 Update: Fix for tweets which when retweeted exceed 140 chars.
+ Thanks again to Daniel Lee for the feedback.
+
+ 0.9.3 Update: Fix for bug with query for already tweeted tweets. Thanks again
+ to Daniel Lee for troubleshooting.
+
+ 0.9.2 Update: Fix for bug which was allowing duplicate posts in the database
+ Duplicates weren't retweeted, but did swell db size.
+ Also made hashtag case-insensitive - match UserName and username equally
+ Thanks to Daniel Lee ( http://yankeeincanada.typepad.com/ ) for
+ identifying these issues.
+
+ 0.9.1 Update: Fix for HTTP Status 417 errors returned by Twitter API,
+ better error checking on what is returned from Twitter, and better
+ variable naming in final while loop. (2/10/09).
+
+ Scans the tweets of those followed by a given username.
+ When it finds a hashtag (#username) in those tweets, adds them to
+ a database and retweets them, prefixed by the tweeters username.
+ This enables all who follow the account to recieve the tagged
+ posts of all others who follow the account.
+
+ Assumes it is being run from a crontab entry.
+
+ Remember Twitter API limits - run every 2 minutes.
+
+ by John Eckman, http://johneckman.com/
+
+ Latest version:
+ http://www.openparenthesis.org/code/twitter-api/
+
+ ----------------------------------------------------------------------
+ LICENSE
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>
+ ======================================================================
+*/
+
+
+// Set username - which is also the hashtag retweeter will look for
+$username = 'username';
+
+// Setup database connection
+$dbserver = 'database_host';
+$dbuser = 'database_username';
+$dbpass = 'database_password';
+$dbname = 'database_name';
+
+// we'll need some OAuth stuff here
+// register your retweeter at http://dev.twitter.com/apps/new
+$consumer_key = 'consumer_key';
+$consumer_request = 'consumer_secret';
+
+// then click on "my token" on the resulting page and get these (make sure
+// you are logged in AS THE USERNAME you intend to use, as these keys are
+// specific to the user:
+$retweeter_oauth_token = 'oauth_token';
+$retweeter_oauth_secret = 'oauth_secret';
+
+// To use the old format rather than the new retweet API, change this to true
+define('USE_OLD_FORMAT',false);
+
+// most users should not have to config beyond here
+require_once('twitteroauth.php');
+
+$db_handle = mysql_connect($dbserver,$dbuser,$dbpass) or die('Could not connect: ' . mysql_error());
+mysql_select_db($dbname) or die('Could not select db');
+
+// get the md5 hash from db or make it if it doesn't exist
+$query = "SELECT meta_value from conf WHERE meta_key = 'hash'";
+$result = mysql_query($query) or die('Could not run query on log table' . mysql_error());
+
+if ($result && (mysql_num_rows($result) == 0)) {
+ $oauth_hash = md5($consumer_key.$consumer_request.$retweeter_oauth_token.$retweeter_oauth_secret);
+ $query = "INSERT into conf (meta_value,meta_key) VALUES ('" .trim($oauth_hash) . "','hash');";
+ $my_result = mysql_query($query) or die('Could not update oauth hash' . mysql_error());
+} else {
+ $oauth_hash = mysql_result($result,0);
+ echo 'Got Oauth hash, it is ' . $oauth_hash . '<br />';
+}
+$connection = new TwitterOAuth(
+ $consumer_key,
+ $consumer_request,
+ $retweeter_oauth_token,
+ $retweeter_oauth_secret
+ );
+
+
+// The twitter API address
+$url = 'http://twitter.com/statuses/friends_timeline.xml';
+
+$buffer = $connection->get($url);
+
+// check for success or failure
+if (empty($buffer)) { echo 'got no data'; } else {
+ $responseCode = $connection->http_code;
+}
+
+// Log status here
+$myResponseCode = mysql_real_escape_string($responseCode,$db_handle);
+$query = "INSERT INTO log (Status) VALUES ('" . $myResponseCode . "')";
+$result = mysql_query($query) or die('Could not run query on log table' . mysql_error());
+
+if ($responseCode == 200)
+{
+ $xml = new SimpleXMLElement($buffer);
+
+ foreach( $xml->status as $twTweetNode)
+ {
+ $strTweet = $twTweetNode->text;
+ $strPostId = $twTweetNode->user->id . $twTweetNode->id;
+ $strUser = $twTweetNode->user->screen_name;
+ $strPlainPostId = $twTweetNode->id;
+
+ //echo $strPostId . " " . $strUser . " ";
+
+ // Since we're using Friends_timeline, need to strip out the user
+ if (strtolower($strUser) != strtolower($username))
+ {
+ $insert = 0;
+ $tweetQuery = "SELECT PostId from tweet WHERE PostId = '". $strPostId ."'";
+
+ //echo $tweetQuery; // echo the query
+
+ $result = mysql_query($tweetQuery) or die('Couldnt run query on tweetid' . mysql_error());
+
+ if (($result) && (mysql_num_rows($result) == 0))
+ {
+ // echo "this is a new tweet";
+ $insert = 1;
+ }
+
+ // set hashtag and tweet to lower for case-insensitive comparison
+ $myHashtag = "#" . strtolower($username);
+ if ((strpos(strtolower($strTweet),$myHashtag) > -1) && $insert == 1)
+ {
+ $myTweet = mysql_real_escape_string($strTweet,$db_handle);
+
+ $myQuery = "INSERT into tweet (PostId, User, Tweet, PlainPostID) VALUES ('" .
+ trim($strPostId) . "','" . trim($strUser) .
+ "','" . trim($myTweet) ."','". trim($strPlainPostId) ."');";
+
+ $result = mysql_query($myQuery) or die('Couldnt insert tweet' . mysql_error());
+
+ //echo "inserting tweet";
+ }
+ } // end if for != $username
+
+ } // end for each status
+} // end if Status Code 200
+
+// Now we'll go and check the db for tweets which have not yet been retweeted
+
+$myQuery = "SELECT PostId,User,Tweet,Tweeted,PlainPostID FROM tweet WHERE Tweeted is NULL";
+
+$result = mysql_query($myQuery) or die('Could not select tweets not tweeted' . mysql_error());
+echo "Results of Tweeted is NULL query: " . mysql_num_rows($result);
+
+// date for tweeted
+$mysqldate = date('Y-m-d H:i:s');
+
+// look at each un-retweeted tweet, post it, and set Tweeted date
+while($row = mysql_fetch_array($result))
+{
+ if(($row['PlainPostID'] == '') || (USE_OLD_FORMAT)) {
+ $myTweetUser = $row['User'];
+ $myTweetText = $row['Tweet'];
+ if((strlen($myTweetText) + strlen($myTweetUser) + strlen("rt: @ ")) > 138) {
+ // Houston, we have a problem - this will be too big when retweeted
+ $myTweetArray = explode("\n", wordwrap($myTweetText,132-strlen($myTweetUser) ) );
+ $myTweetText = $myTweetArray[0] . " ..." ;
+ }
+ $myTweet = "rt: @" . $myTweetUser . " " . $myTweetText;
+ $tweet_post_url = 'http://twitter.com/statuses/update.xml';
+ $buffer = $connection->post($tweet_post_url,array(
+ 'status' => $myTweet,
+ 'source' => 'retweeter'
+ ));
+ } else { // tweet has a plain id, can use retweet api
+ $myTweet = $myTweet = $row['PlainPostID'];
+ $tweet_post_url = 'http://api.twitter.com/1/statuses/retweet/' . $myTweet . '.xml';
+ $buffer = $connection->post($tweet_post_url);
+ }
+ // If it fails, don't mark it Tweeted, we'll get it next time
+ if (empty($buffer)) {
+ echo 'got no data';
+ $responseCode = '';
+ } else {
+ $responseCode = $connection->http_code;
+ }
+ if ($responseCode == 200) {
+ echo 're-tweeted one';
+ $myQuery = "UPDATE tweet SET Tweeted = '" . $mysqldate . "' WHERE PostId = '" . $row['PostId'] . "'";
+ $my_retweet_result = mysql_query($myQuery) or die('Could not update tweeted date' . mysql_error());
+ } else {
+ echo '<p>Re-tweet failed, with status code ' . $responseCode . '</p>';
+ }
+}
+?>
View
249 twitteroauth.php
@@ -0,0 +1,249 @@
+<?php
+
+/*
+ * Abraham Williams (abraham@abrah.am) http://abrah.am
+ *
+ * The first PHP Library to support OAuth for Twitter's REST API.
+ */
+
+/* Load OAuth lib. You can find it at http://oauth.net */
+require_once('OAuth.php');
+
+if (!class_exists('TwitterOAuth')) {
+
+/**
+ * Twitter OAuth class
+ */
+class TwitterOAuth {
+ /* Contains the last HTTP status code returned. */
+ public $http_code;
+ /* Contains the last API call. */
+ public $url;
+ /* Set up the API root URL. */
+ public $host = "https://api.twitter.com/1/";
+ /* Set timeout default. */
+ public $timeout = 30;
+ /* Set connect timeout. */
+ public $connecttimeout = 30;
+ /* Verify SSL Cert. */
+ public $ssl_verifypeer = FALSE;
+ /* Respons format. */
+ public $format = 'json';
+ /* Decode returned json data. */
+ public $decode_json = false;
+ /* Contains the last HTTP headers returned. */
+ public $http_info;
+ /* Set the useragnet. */
+ public $useragent = 'TwitterOAuth v0.2.0-beta2';
+ /* Immediately retry the API call if the response was not successful. */
+ //public $retry = TRUE;
+
+
+
+
+ /**
+ * Set API URLS
+ */
+ function accessTokenURL() { return 'https://api.twitter.com/oauth/access_token'; }
+ function authenticateURL() { return 'https://twitter.com/oauth/authenticate'; }
+ function authorizeURL() { return 'https://twitter.com/oauth/authorize'; }
+ function requestTokenURL() { return 'https://api.twitter.com/oauth/request_token'; }
+
+ /**
+ * Debug helpers
+ */
+ function lastStatusCode() { return $this->http_status; }
+ function lastAPICall() { return $this->last_api_call; }
+
+ /**
+ * construct TwitterOAuth object
+ */
+ function __construct($consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
+ $this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();
+ $this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
+ if (!empty($oauth_token) && !empty($oauth_token_secret)) {
+ $this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);
+ } else {
+ $this->token = NULL;
+ }
+ }
+
+
+ /**
+ * Get a request_token from Twitter
+ *
+ * @returns a key/value array containing oauth_token and oauth_token_secret
+ */
+ function getRequestToken($oauth_callback = NULL) {
+ $parameters = array();
+ if (!empty($oauth_callback)) {
+ $parameters['oauth_callback'] = $oauth_callback;
+ }
+ $request = $this->oAuthRequest($this->requestTokenURL(), 'GET', $parameters);
+ $token = OAuthUtil::parse_parameters($request);
+ $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+ return $token;
+ }
+
+ /**
+ * Get the authorize URL
+ *
+ * @returns a string
+ */
+ function getAuthorizeURL($token, $sign_in_with_twitter = TRUE) {
+ if (is_array($token)) {
+ $token = $token['oauth_token'];
+ }
+ if (empty($sign_in_with_twitter)) {
+ return $this->authorizeURL() . "?oauth_token={$token}";
+ } else {
+ return $this->authenticateURL() . "?oauth_token={$token}";
+ }
+ }
+
+ /**
+ * Exchange request token and secret for an access token and
+ * secret, to sign API calls.
+ *
+ * @returns array("oauth_token" => "the-access-token",
+ * "oauth_token_secret" => "the-access-secret",
+ * "user_id" => "9436992",
+ * "screen_name" => "abraham")
+ */
+ function getAccessToken($oauth_verifier = FALSE) {
+ $parameters = array();
+ if (!empty($oauth_verifier)) {
+ $parameters['oauth_verifier'] = $oauth_verifier;
+ }
+ $request = $this->oAuthRequest($this->accessTokenURL(), 'GET', $parameters);
+ $token = OAuthUtil::parse_parameters($request);
+ $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+ return $token;
+ }
+
+ /**
+ * One time exchange of username and password for access token and secret.
+ *
+ * @returns array("oauth_token" => "the-access-token",
+ * "oauth_token_secret" => "the-access-secret",
+ * "user_id" => "9436992",
+ * "screen_name" => "abraham",
+ * "x_auth_expires" => "0")
+ */
+ function getXAuthToken($username, $password) {
+ $parameters = array();
+ $parameters['x_auth_username'] = $username;
+ $parameters['x_auth_password'] = $password;
+ $parameters['x_auth_mode'] = 'client_auth';
+ $request = $this->oAuthRequest($this->accessTokenURL(), 'POST', $parameters);
+ $token = OAuthUtil::parse_parameters($request);
+ $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
+ return $token;
+ }
+
+ /**
+ * GET wrapper for oAuthRequest.
+ */
+ function get($url, $parameters = array()) {
+ $response = $this->oAuthRequest($url, 'GET', $parameters);
+ if ($this->format === 'json' && $this->decode_json) {
+ return json_decode($response);
+ }
+ return $response;
+ }
+
+ /**
+ * POST wrapper for oAuthRequest.
+ */
+ function post($url, $parameters = array()) {
+ $response = $this->oAuthRequest($url, 'POST', $parameters);
+ if ($this->format === 'json' && $this->decode_json) {
+ return json_decode($response);
+ }
+ return $response;
+ }
+
+ /**
+ * DELETE wrapper for oAuthReqeust.
+ */
+ function delete($url, $parameters = array()) {
+ $response = $this->oAuthRequest($url, 'DELETE', $parameters);
+ if ($this->format === 'json' && $this->decode_json) {
+ return json_decode($response);
+ }
+ return $response;
+ }
+
+ /**
+ * Format and sign an OAuth / API request
+ */
+ function oAuthRequest($url, $method, $parameters) {
+ if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0) {
+ $url = "{$this->host}{$url}.{$this->format}";
+ }
+ $request = OAuthRequest::from_consumer_and_token($this->consumer, $this->token, $method, $url, $parameters);
+ $request->sign_request($this->sha1_method, $this->consumer, $this->token);
+ switch ($method) {
+ case 'GET':
+ return $this->http($request->to_url(), 'GET');
+ default:
+ return $this->http($request->get_normalized_http_url(), $method, $request->to_postdata());
+ }
+ }
+
+ /**
+ * Make an HTTP request
+ *
+ * @return API results
+ */
+ function http($url, $method, $postfields = NULL) {
+ $this->http_info = array();
+ $ci = curl_init();
+ /* Curl settings */
+ curl_setopt($ci, CURLOPT_USERAGENT, $this->useragent);
+ curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
+ curl_setopt($ci, CURLOPT_TIMEOUT, $this->timeout);
+ curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
+ curl_setopt($ci, CURLOPT_HTTPHEADER, array('Expect:'));
+ curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
+ curl_setopt($ci, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
+ curl_setopt($ci, CURLOPT_HEADER, FALSE);
+
+ switch ($method) {
+ case 'POST':
+ curl_setopt($ci, CURLOPT_POST, TRUE);
+ if (!empty($postfields)) {
+ curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
+ }
+ break;
+ case 'DELETE':
+ curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
+ if (!empty($postfields)) {
+ $url = "{$url}?{$postfields}";
+ }
+ }
+
+ curl_setopt($ci, CURLOPT_URL, $url);
+ $response = curl_exec($ci);
+ $this->http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
+ $this->http_info = array_merge($this->http_info, curl_getinfo($ci));
+ $this->url = $url;
+ curl_close ($ci);
+ return $response;
+ }
+
+ /**
+ * Get the header info to store.
+ */
+ function getHeader($ch, $header) {
+ $i = strpos($header, ':');
+ if (!empty($i)) {
+ $key = str_replace('-', '_', strtolower(substr($header, 0, $i)));
+ $value = trim(substr($header, $i + 2));
+ $this->http_header[$key] = $value;
+ }
+ return strlen($header);
+ }
+}
+
+} // class_exists check
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