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post to StatusNet addon for Friendika

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This commit is contained in:
Tobias Diekershoff 2011-02-08 15:17:41 +01:00
parent 2a093c5c8b
commit ca1b8a267d
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<?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);
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);
}
}
?>

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<?php
/*
Copyright (c) 2009, Beau Lebens
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
- Neither the name of Dented Reality nor the names of the authors may be used
to endorse or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// Return options for Slinky_Service->url_get() and ->url_post()
define( 'SLINKY_BODY', 1 ); // Default
define( 'SLINKY_HEADERS', 2 ); // Not implemented yet
define( 'SLINKY_FINAL_URL', 3 ); // Default for lengthening URLs
// So that services may decide what to do with us
define( 'SLINKY_USER_AGENT', 'Slinky v1.0 +http://dentedreality.com.au/projects/slinky/' );
// How many seconds until remote requests should be cut?
define( 'SLINKY_TIMEOUT', 10 );
/**
* Slinky allows you to go back and forth between "long" and shortened URLs
* using popular URL shortening services.
*
* Slinky assumes you have cURL installed and working, and requires the JSON
* extension installed if you're working with a service that uses JSON.
*
* Slinky will ONLY work with PHP5+
*
* It supports some of the more popular services, with easy extensibility for
* adding your own relatively easily. It defaults to using TinyURL
* for shortening URLs. If you want to use some of the other services, you need
* to set some configuration options before actually shortening/lengthening
* URLs. I'd strongly suggest that you cache results using memcached, a local
* DB or whatever to avoid having to hit APIs etc every time you encounter a
* URL.
*
* Slinky supports shortening, and auto-detection (for lengthening URLs)
* using these services:
* - Bit.ly
* - Tr.im
* - TinyURL
* - Is.Gd
* - Fon.gs
* - Micurl.com
* - ur1.ca
* - Ptiturl
* - Tighturl
* - 2tu.us
* - Snipr / Snipurl / Snurl.com / Sn.im
*
*
* To use Slinky:
*
* $slinky = new Slinky( 'http://dentedreality.com.au/' );
* - Creates a new Slinky instance, will default to using TinyURL for ->short();
*
* $slinky = new Slinky( 'http://dentedreality.com.au', new Slinky_Bitly() );
* - Creates new Slinky, forces use of Bit.ly for ->short();
*
* $slinky = new Slinky( 'http://dentedreality.com.au/' );
* echo $slinky->short();
* - echos the short version of http://dentedreality.com.au/ (default to TinyURL)
*
* $slinky = new Slinky( 'http://tinyurl.com/jw5sh' );
* echo $slinky->long();
* - echos out the long version of http://tinyurl.com/jw5sh (which should be http://dentedreality.com.au/)
*
* $slinky = new Slinky( 'http://dentedreality.com.au/' );
* echo $slinky->long();
* - Attempts to lengthen the URL, but will not auto-detect which service it is
* so it will just output the original URL. Useful for always attempting to
* lengthen any URL you come across (fails gracefully)
*
* $slinky = new Slinky( 'http://dentedreality.com.au/' );
* $slinky->set_cascade( array( new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
* echo $slinky->short();
* - Uses the powerful cascade mode to make sure that we get a short URL from
* Tr.im, Is.Gd or TinyURL (in that order).
*
* See specific service class definitions below for examples of how to use them,
* as some services allow (or require) additional properties before you can use
* them (for authentication etc).
*
* To use a different service with Slinky, just create your own class and
* extend Slinky_Service(). Make sure you implement url_is_short(), url_is_long(),
* make_short() and make_long(). If you need to GET or POST a URL, you can use
* ->url_get() and ->url_post(), which your class will have inherited.
**/
class Slinky {
var $url = false;
var $service = false;
var $cascade = false;
function __construct( $url = false, $service = false ) {
$this->url = $url;
$this->service = $service;
}
/**
* Specify which URL Service to use
*
* @param Slinky_Service $service Packaged or custom Service object
* @return void
*/
public function set_service( $service = false ) {
if ( is_object( $service ) ) {
$this->service = $service;
}
}
/**
* If you pass an array of Slinky_Service objects to this method, they will
* be used in order to try to get a short URL, so if one fails, it will
* try the next and so on, until it gets a valid short URL, or it runs
* out of options.
*
* @param array $services List of Slinky_Service objects as an array
**/
public function set_cascade( $services = false ) {
if ( !$services || !is_array( $services ) )
return false;
$this->cascade = $services;
}
/**
* Guess the URL service to use from known domains of short URLs
*
* @param string $url
*/
public function set_service_from_url( $url = false ) {
if ( !$url )
$url = $this->url;
$host = parse_url( $url, PHP_URL_HOST );
switch ( str_replace( 'www.', '', $host ) ) {
case 'bit.ly':
if ( class_exists( 'Slinky_Bitly' ) ) {
$this->service = new Slinky_Bitly();
break;
}
case 'tr.im':
if ( class_exists( 'Slinky_Trim' ) ) {
$this->service = new Slinky_Trim();
break;
}
case 'tinyurl.com':
if ( class_exists( 'Slinky_TinyURL' ) ) {
$this->service = new Slinky_TinyURL();
break;
}
case 'is.gd':
if ( class_exists( 'Slinky_IsGd' ) ) {
$this->service = new Slinky_IsGd();
break;
}
case 'fon.gs':
if ( class_exists( 'Slinky_Fongs' ) ) {
$this->service = new Slinky_Fongs();
break;
}
case 'micurl.com':
if ( class_exists( 'Slinky_Micurl' ) ) {
$this->service = new Slinky_Micurl();
break;
}
case 'ur1.ca':
if ( class_exists( 'Slinky_Ur1ca' ) ) {
$this->service = new Slinky_Ur1ca();
break;
}
case 'ptiturl.com':
if ( class_exists( 'Slinky_PtitURL' ) ) {
$this->service = new Slinky_PtitURL();
break;
}
case 'tighturl.com':
case '2tu.us':
if ( class_exists( 'Slinky_TightURL' ) ) {
$this->service = new Slinky_TightURL();
break;
}
case 'snipr.com':
case 'snipurl.com':
case 'snurl.com':
case 'sn.im':
if ( class_exists( 'Slinky_Snipr' ) ) {
$this->service = new Slinky_Snipr();
break;
}
default:
$this->service = new Slinky_Default();
break;
}
}
/**
* Take a long URL and make it short. Will avoid "re-shortening" a URL if it
* already seems to be short.
*
* @param string $url Optional URL to shorten, otherwise use $this->url
* @return The short version of the URL
*/
public function short( $url = false ) {
if ( $url )
$this->url = $url;
if ( !$this->service )
$this->set_service( new Slinky_TinyURL() ); // Defaults to tinyurl because it doesn't require any configuration
if ( !$this->cascade )
$this->cascade = array( $this->service ); // Use a single service in cascade mode
foreach ( $this->cascade as $service ) {
if ( $service->url_is_short( $this->url ) )
return trim( $this->url ); // Identified as already short, using this service
$response = trim( $service->make_short( $this->url ) );
if ( $response && $this->url != $response )
return trim( $response );
}
return $this->url; // If all else fails, just send back the URL we already know about
}
/**
* Take a short URL and make it long ("resolve" it).
*
* @param string $url The short URL
* @return A long URL
*/
public function long( $url = false ) {
if ( $url )
$this->url = $url;
if ( !$this->service )
$this->set_service_from_url();
if ( $this->service->url_is_long( $this->url ) )
return trim( $this->url );
return trim( $this->service->make_long( $this->url ) );
}
}
/**
* Use this class to create a Service implementation for your own URL
* shortening service. Extend the class and customize methods to suit your
* service. Note that it is an "abstract" class, so there are certain methods
* which you *must* define.
**/
abstract class Slinky_Service {
/**
* Determine, based on the input URL, if it's already a short URL, from
* this particular service. e.g. a Bit.ly URL contains "bit.ly/"
**/
abstract function url_is_short( $url );
/**
* Determine if this is a "long" URL (just means it hasn't been shortened)
* already. e.g. a no-Bit.ly URL would NOT contain "bit.ly/"
**/
abstract function url_is_long( $url );
/**
* Handle taking the $url and converting it to a short URL via whatever
* means is provided at the remote service.
**/
abstract function make_short( $url );
/**
* Return the long/expanded version of a URL via any API means available
* from this service. As a fallback, you might
* consider just following the URL and using SLINKY_FINAL_URL as the
* return method from a $this->url_get() call to find out.
*
* This one is optional for Services extending this class, if they don't
* then the following implementation will work on most services anyway.
**/
public function make_long( $url ) {
return $this->url_get( $url, SLINKY_FINAL_URL );
}
/**
* Method for getting properties that you might need during the process
* of shortening/lengthening a URL (e.g. auth credentials)
**/
public function get( $prop ) {
if ( empty( $this->$prop ) )
return null;
return $this->$prop;
}
/**
* Method for setting properties that you might need during the process
* of shortening/lengthening a URL (e.g. auth credentials)
**/
public function set( $prop, $val ) {
$this->$prop = $val;
}
/**
* Internal helper for performing a GET request on a remote URL.
*
* @param string $url The URL to GET
* @param const $return The return method [ SLINKY_BODY | SLINKY_FINAL_URL | SLINKY_HEADERS ]
* @return Mixed, based on the $return var passed in.
**/
protected function url_get( $url, $return = SLINKY_BODY ) {
$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_USERAGENT, SLINKY_USER_AGENT );
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, 0 ); // Don't stress about SSL validity
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 ); // Return the response, don't output it
curl_setopt( $ch, CURLOPT_TIMEOUT, SLINKY_TIMEOUT ); // Limit how long we'll wait for a response
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1 ); // Allow following of redirections
$r = curl_exec( $ch );
if ( curl_errno( $ch ) ) {
return false;
}
// Return whatever we were asked for
if ( SLINKY_FINAL_URL == $return )
return curl_getinfo( $ch, CURLINFO_EFFECTIVE_URL );
else if ( SLINKY_BODY == $return )
return $r;
return false;
}
/**
* Internal helper for performing a POST request on a remote URL.
*
* @param string $url The URL to POST to
* @param array $payload Array containing name/value pairs of the parameters to POST
* @param const $return The return method [ SLINKY_BODY | SLINKY_FINAL_URL | SLINKY_HEADERS ]
* @return Mixed, based on the $return var passed in.
**/
protected function url_post( $url, $payload = array(), $return = SLINKY_BODY ) {
$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_POST, true );
curl_setopt( $ch, CURLOPT_POSTFIELDS, (array) $payload );
curl_setopt( $ch, CURLOPT_USERAGENT, SLINKY_USER_AGENT );
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, 0 ); // Don't stress about SSL validity
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 ); // Return the response, don't output it
curl_setopt( $ch, CURLOPT_TIMEOUT, SLINKY_TIMEOUT ); // Limit how long we'll wait for a response
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1 ); // Allow following of redirections
$r = curl_exec( $ch );
if ( curl_errno( $ch ) ) {
return false;
}
// Return whatever we were asked for
if ( SLINKY_FINAL_URL == $return )
return curl_getinfo( $ch, CURLINFO_EFFECTIVE_URL );
else if ( SLINKY_BODY == $return )
return $r;
return false;
}
}
// This default service is used in cases when you try to do something based
// on auto-detection, but we can't detect anything. It will also resolve URLs
// to their "long" version by following all redirects.
class Slinky_Default extends Slinky_Service {
function url_is_short( $url ) {
return false;
}
function url_is_long( $url ) {
return false;
}
function make_short( $url ) {
return $url;
}
}
// Implementation of TinyURL as a Slinky Service
class Slinky_TinyURL extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'tinyurl.com/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'tinyurl.com/' );
}
function make_short( $url ) {
return $this->url_get( 'http://tinyurl.com/api-create.php?url=' . urlencode( $url ) );
}
function make_long( $url ) {
$bits = parse_url( $url );
$result = $this->url_get( 'http://tinyurl.com/preview.php?num=' . substr( $bits['path'], 1 ) );
if ( preg_match('/<a id="redirecturl" href="([^"]+)">/is', $result, $matches ) )
return $matches[1];
else
return $url;
}
}
// Implementation of Bit.ly as a Slinky Service
/*
To use Bit.ly, you MUST set your login and apiKey for the service first, e.g.
$bitly = new Slinky_Bitly();
$bitly->set( 'login', 'bitly_login' );
$bitly->set( 'apiKey', 'bitly_apiKey' );
$slinky = new Slinky( $url, $bitly );
echo $slinky->short();
You could also do this if the URL was already a bit.ly URL and you
were going to make it longer, since Bitly is supported for auto-detection:
$slinky = new Slinky( $url );
$slinky->set_service_from_url();
$slinky->service->set( 'login', 'bitly_login' );
$slinky->service->set( 'apiKey', 'bitly_apiKey' );
echo $slinky->long();
*/
class Slinky_Bitly extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'bit.ly/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'bit.ly/' );
}
function make_short( $url ) {
// Can't do anything unless these 2 properties are set first
if ( !$this->get( 'login' ) || !$this->get( 'apiKey' ) )
return $url;
$result = $this->url_post( 'http://api.bit.ly/shorten?version=2.0.1&format=json&login=' . $this->get( 'login' ) . '&apiKey=' . $this->get( 'apiKey' ) . '&longUrl=' . urlencode( $url ) );
$result = json_decode( $result );
if ( !$result->errorCode ) {
foreach ( $result->results as $detail ) {
return $detail->shortUrl;
}
} else {
return false;
}
}
function make_long( $url ) {
// Can't do anything unless these 2 properties are set first
if ( !$this->get( 'login' ) || !$this->get( 'apiKey' ) )
return $url;
$result = $this->url_post( 'http://api.bit.ly/expand?version=2.0.1&format=json&login=' . $this->get( 'login' ) . '&apiKey=' . $this->get( 'apiKey' ) . '&shortUrl=' . urlencode( $url ) );
$result = json_decode( $result );
if ( !$result->errorCode ) {
foreach ( $result->results as $detail ) {
return $detail->longUrl;
}
} else {
return false;
}
}
}
// Implementation of Tr.im as a Slinky Service
/*
When using Tr.im, you MAY optionally set your username and password to tie
URLs to your account, e.g.
$trim = new Slinky_Trim();
$trim->set( 'username', 'trim_username' );
$trim->set( 'password', 'trim_password' );
$slinky = new Slinky( $url, $trim );
echo $slinky->short();
You could also do this if the URL was already a tr.im URL and you
were going to make it longer, since Tr.im is supported for auto-detection:
$slinky = new Slinky( $url );
$slinky->set_service_from_url();
echo $slinky->long();
*/
class Slinky_Trim extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'tr.im/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'tr.im/' );
}
function make_short( $url ) {
$url = 'http://api.tr.im/api/trim_simple?url=' . urlencode( $url );
if ( $this->get( 'username' ) && $this->get( 'password' ) )
$url .= '&username=' . urlencode( $this->get( 'username' ) ) . '&password=' . urlencode( $this->get( 'password' ) );
return $this->url_get( $url );
}
function make_long( $url ) {
$bits = parse_url( $url );
$result = $this->url_get( 'http://api.tr.im/api/trim_destination.json?trimpath=' . substr( $bits['path'], 1 ) );
$result = json_decode($result);
if ( 'OK' == $result->status->result )
return $result->destination;
else
return $url;
}
}
// Implementation of Is.Gd as a Slinky Service
class Slinky_IsGd extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'is.gd/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'is.gd/' );
}
function make_short( $url ) {
$response = $this->url_get( 'http://is.gd/api.php?longurl=' . urlencode( $url ) );
if ( 'error' == substr( strtolower( $response ), 0, 5 ) )
return false;
else
return $response;
}
}
// Fon.gs
class Slinky_Fongs extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'fon.gs/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'fon.gs/' );
}
function make_short( $url ) {
$response = $this->url_get( 'http://fon.gs/create.php?url=' . urlencode( $url ) );
if ( 'OK:' == substr( $response, 0, 3 ) )
return str_replace( 'OK: ', '', $response );
else
return $url;
}
}
// Micu.rl
class Slinky_Micurl extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'micurl.com/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'micurl.com/' );
}
function make_short( $url ) {
$result = $this->url_get( 'http://micurl.com/api.php?url=' . urlencode( $url ) );
if ( 1 != $result && 2 != $result )
return 'http://micurl.com/' . $result;
else
return $url;
}
}
// ur1.ca
class Slinky_Ur1ca extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'ur1.ca/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'ur1.ca/' );
}
function make_short( $url ) {
$result = $this->url_post( 'http://ur1.ca/', array( 'longurl' => $url ) );
if ( preg_match( '/<p class="success">Your ur1 is: <a href="([^"]+)">/', $result, $matches ) )
return $matches[1];
else
return $url;
}
}
// PtitURL.com
class Slinky_PtitURL extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'ptiturl.com/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'ptiturl.com/' );
}
function make_short( $url ) {
$result = $this->url_get( 'http://ptiturl.com/index.php?creer=oui&url=' . urlencode( $url ) );
if ( preg_match( '/<pre><a href=\'?([^\'>]+)\'?>/', $result, $matches ) )
return $matches[1];
else
return $url;
}
}
// Tighturl.com
class Slinky_TightURL extends Slinky_Service {
function url_is_short( $url ) {
return stristr( $url, 'tighturl.com/' )
|| stristr( $url, '2tu.us/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'tighturl.com/' )
&& !stristr( $url, '2tu.us/' );
}
function make_short( $url ) {
$response = $this->url_get( 'http://tighturl.com/?save=y&url=' . urlencode( $url ) );
if ( preg_match( '/Your tight URL is: <code><a href=\'([^\']+)\' target=\'_blank\'>/', $response, $matches ) ) {
return $matches[1];
} else {
return $url;
}
}
}
// Snipr for Slinky
/*
To use Snipr, you MUST set your user_id and API (key) for the service first, e.g.
$snipr = new Slinky_Snipr();
$snipr->set( 'user_id', 'Snipr User ID' );
$snipr->set( 'API', 'Snipr API Key' );
$slinky = new Slinky( $url, $snipr );
echo $slinky->short();
NOTE: Snipr requires the SimpleXML extension to be installed for lengthening URLs
*/
class Slinky_Snipr extends Slinky_Service {
// Snipurl, Snurl, Snipr, Sn.im
function url_is_short( $url ) {
return stristr( $url, 'snipr.com/' ) || stristr( $url, 'snipurl.com/' ) || stristr( $url, 'snurl.com/' ) || stristr( $url, 'sn.im/' );
}
function url_is_long( $url ) {
return !stristr( $url, 'snipr.com/' ) || !stristr( $url, 'snipurl.com/' ) || !stristr( $url, 'snurl.com/' ) || !stristr( $url, 'sn.im/' );
}
function make_short( $url ) {
if ( !$this->get( 'user_id' ) || !$this->get( 'API' ) )
return $url;
$response = $this->url_post( 'http://snipr.com/site/getsnip', array( 'sniplink' => urlencode( $url ), 'snipuser' => $this->get( 'user_id'), 'snipapi' => $this->get( 'API' ), 'snipformat' => 'simple' ) );
if ( 'ERROR' != substr( $response, 0, 5 ) )
return $response;
else
return $url;
}
}
// If you're testing things out, http://dentedreality.com.au/ should convert to:
// - http://tinyurl.com/jw5sh
// - http://bit.ly/hEkAD
// - http://tr.im/sk1H
// - http://is.gd/1yJ81
// - http://fon.gs/tc1p8c
// - http://micurl.com/qen3uub
// - http://ur1.ca/7dcd
// - http://ptiturl.com/?id=bac8fb
// - http://tighturl.com/kgd
// - http://snipr.com/nbbw3
//
// $slinky = new Slinky( 'http://dentedreality.com.au/' );
// echo $slinky->short();

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#statusnet-avatar {
float: left;
width: 48px;
height: 48px;
padding: 2px;
}
#statusnet-info-block {
height: 52px;
vertical-align: middle;
}
#statusnet-disconnect-label {
float: left;
width: 200px;
margin-bottom: 25px;
}
#statusnet-disconnect {
float: left;
}
#statusnet-enable-label {
float: left;
width: 200px;
margin-bottom: 5px;
}
#statusnet-checkbox {
float: left;
}
#statusnet-pin-label {
float: left;
width: 200px;
margin-bottom: 25px;
}
#statusnet-pin {
float: left;
}
#statusnet-consumerkey-label {
float: left;
width: 200px;
margin-bottom: 8px;
}
#statusnet-consumerkey {
float: left;
margin-bottom: 8px;
}
#statusnet-consumersecret-label {
float: left;
width: 200px;
margin-bottom: 8px;
}
#statusnet-consumersecret {
float: left;
margin-bottom: 8px;
}
#statusnet-baseapi-label {
float: left;
width: 200px;
margin-bottom: 25px;
}
#statusnet-baseapi {
float: left;
margin-bottom: 8px;
}

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<?php
/* StatusNet Plugin for Friendika
*
* Author: Tobias Diekershoff
* tobias.diekershoff@gmx.net
*
* License:3-clause BSD license (same as Friendika)
*
* Configuration:
* To activate the plugin itself add it to the $a->config['system']['addon']
* setting. After this, your user can configure their Twitter account settings
* from "Settings -> Plugin Settings".
*
* Requirements: PHP5, curl [Slinky library]
*
* Documentation: http://diekershoff.homeunix.net/redmine/wiki/friendikaplugin/StatusNet_Plugin
*/
/* __TODO__
*
* - what about multimedia content?
* so far we just strip HTML tags from the message
*/
/***
* We have to alter the TwitterOAuth class a little bit to work with any StatusNet
* installation abroad. Basically it's only make the API path variable and be happy.
*
* Thank you guys for the Twitter compatible API!
*/
require_once('addon/twitter/twitteroauth.php');
class StatusNetOAuth extends TwitterOAuth {
function get_maxlength() {
$config = $this->get($this->host . 'statusnet/config.json');
return $config->site->textlimit;
}
function accessTokenURL() { return $this->host.'oauth/access_token'; }
function authenticateURL() { return $this->host.'oauth/authenticate'; }
function authorizeURL() { return $this->host.'oauth/authorize'; }
function requestTokenURL() { return $this->host.'oauth/request_token'; }
function __construct($apipath, $consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
parent::__construct($consumer_key, $consumer_secret, $oauth_token, $oauth_token_secret);
$this->host = $apipath;
}
}
function statusnet_install() {
// we need some hooks, for the configuration and for sending tweets
register_hook('plugin_settings', 'addon/statusnet/statusnet.php', 'statusnet_settings');
register_hook('plugin_settings_post', 'addon/statusnet/statusnet.php', 'statusnet_settings_post');
register_hook('post_local_end', 'addon/statusnet/statusnet.php', 'statusnet_post_hook');
logger("installed statusnet");
}
function statusnet_uninstall() {
unregister_hook('plugin_settings', 'addon/statusnet/statusnet.php', 'statusnet_settings');
unregister_hook('plugin_settings_post', 'addon/statusnet/statusnet.php', 'statusnet_settings_post');
unregister_hook('post_local_end', 'addon/statusnet/statusnet.php', 'statusnet_post_hook');
}
function statusnet_settings_post ($a,$post) {
if(! local_user())
return;
if (isset($_POST['statusnet-disconnect'])) {
/***
* if the statusnet-disconnect checkbox is set, clear the statusnet configuration
* TODO can we revoke the access tokens at Twitter and do we need to do so?
*/
del_pconfig( local_user(), 'statusnet', 'consumerkey' );
del_pconfig( local_user(), 'statusnet', 'consumersecret' );
del_pconfig( local_user(), 'statusnet', 'post' );
del_pconfig( local_user(), 'statusnet', 'oauthtoken' );
del_pconfig( local_user(), 'statusnet', 'oauthsecret' );
del_pconfig( local_user(), 'statusnet', 'baseapi' );
} else {
if (isset($_POST['statusnet-consumersecret'])) {
set_pconfig(local_user(), 'statusnet', 'consumerkey', $_POST['statusnet-consumerkey']);
set_pconfig(local_user(), 'statusnet', 'consumersecret', $_POST['statusnet-consumersecret']);
set_pconfig(local_user(), 'statusnet', 'baseapi', $_POST['statusnet-baseapi']);
header('Location: '.$a->get_baseurl().'/settings/addon');
} else {
if (isset($_POST['statusnet-pin'])) {
// if the user supplied us with a PIN from Twitter, let the magic of OAuth happen
logger('got a StatusNet security code');
$api = get_pconfig(local_user(), 'statusnet', 'baseapi');
$ckey = get_pconfig(local_user(), 'statusnet', 'consumerkey' );
$csecret = get_pconfig(local_user(), 'statusnet', 'consumersecret' );
// the token and secret for which the PIN was generated were hidden in the settings
// form as token and token2, we need a new connection to Twitter using these token
// and secret to request a Access Token with the PIN
$connection = new StatusNetOAuth($api, $ckey, $csecret, $_POST['statusnet-token'], $_POST['statusnet-token2']);
$token = $connection->getAccessToken( $_POST['statusnet-pin'] );
// ok, now that we have the Access Token, save them in the user config
set_pconfig(local_user(),'statusnet', 'oauthtoken', $token['oauth_token']);
set_pconfig(local_user(),'statusnet', 'oauthsecret', $token['oauth_token_secret']);
set_pconfig(local_user(),'statusnet', 'post', 1);
// reload the Addon Settings page, if we don't do it see Bug #42
header('Location: '.$a->get_baseurl().'/settings/addon');
} else {
// if no PIN is supplied in the POST variables, the user has changed the setting
// to post a tweet for every new __public__ posting to the wall
set_pconfig(local_user(),'statusnet','post',intval($_POST['statusnet-enable']));
}}}
}
function statusnet_settings(&$a,&$s) {
if(! local_user())
return;
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->get_baseurl() . '/addon/statusnet/statusnet.css' . '" media="all" />' . "\r\n";
/***
* 1) Check that we have a base api url and a consumer key & secret
* 2) If no OAuthtoken & stuff is present, generate button to get some
* 3) Checkbox for "Send public notices (respect size limitation)
*/
$api = get_pconfig(local_user(), 'statusnet', 'baseapi');
$ckey = get_pconfig(local_user(), 'statusnet', 'consumerkey' );
$csecret = get_pconfig(local_user(), 'statusnet', 'consumersecret' );
$otoken = get_pconfig(local_user(), 'statusnet', 'oauthtoken' );
$osecret = get_pconfig(local_user(), 'statusnet', 'oauthsecret' );
$enabled = get_pconfig(local_user(), 'statusnet', 'post');
$checked = (($enabled) ? ' checked="checked" ' : '');
$s .= '<h3>'.t('StatusNet Posting Settings').'</h3>';
if ( (!$ckey) && (!$csecret) ) {
/***
* no consumer keys
*/
$s .= '<p>'.t('No consumer key pair for StatusNet found. Register your Friendika Account as an desktop client on your StatusNet account, copy the consumer key pair here and enter the API base root.<br />Before you register your own OAuth key pair ask the administrator if there is already a key pair for this Friendika installation at your favorited StatusNet installation.').'</p>';
$s .= '<div id="statusnet-consumer-wrapper">';
$s .= '<label id="statusnet-consumerkey-label" for="statusnet-consumerkey">OAuth Consumer Key</label>';
$s .= '<input id="statusnet-consumerkey" type="text" name="statusnet-consumerkey" size="35" /><br />';
$s .= '<label id="statusnet-consumersecret-label" for="statusnet-consumersecret">OAuth Consumer Secret</label>';
$s .= '<input id="statusnet-consumersecret" type="text" name="statusnet-consumersecret" size="35" /><br />';
$s .= '<label id="statusnet-baseapi-label" for="statusnet-baseapi">Base API Path (remember the trailing /)</label>';
$s .= '<input id="statusnet-baseapi" type="text" name="statusnet-baseapi" size="35" /><br />';
$s .= '</div><div class="clear"></div>';
$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
} else {
/***
* ok we have a consumer key pair now look into the OAuth stuff
*/
if ( (!$otoken) && (!$osecret) ) {
/***
* the user has not yet connected the account to statusnet
* get a temporary OAuth key/secret pair and display a button with
* which the user can request a PIN to connect the account to a
* account at statusnet
*/
$connection = new StatusNetOAuth($api, $ckey, $csecret);
$request_token = $connection->getRequestToken('oob');
$token = $request_token['oauth_token'];
/***
* make some nice form
*/
$s .= '<p>'.t('To connect to your StatusNet account click the button below to get a security code from StatusNet which you have to copy into the input box below and submit the form. Only your <strong>public</strong> posts will be posted to StatusNet.').'</p>';
$s .= '<a href="'.$connection->getAuthorizeURL($token,False).'" target="_statusnet"><img src="addon/statusnet/signinwithstatusnet.png" alt="'.t('Log in with StatusNet').'"></a>';
$s .= '<div id="statusnet-pin-wrapper">';
$s .= '<label id="statusnet-pin-label" for="statusnet-pin">'.t('Copy the PIN from StatusNet here').'</label>';
$s .= '<input id="statusnet-pin" type="text" name="statusnet-pin" />';
$s .= '<input id="statusnet-token" type="hidden" name="statusnet-token" value="'.$token.'" />';
$s .= '<input id="statusnet-token2" type="hidden" name="statusnet-token2" value="'.$request_token['oauth_token_secret'].'" />';
$s .= '</div><div class="clear"></div>';
$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
} else {
/***
* we have an OAuth key / secret pair for the user
* so let's give a chance to disable the postings to statusnet
*/
$connection = new StatusNetOAuth($api,$ckey,$csecret,$otoken,$osecret);
$details = $connection->get('account/verify_credentials');
$s .= '<div id="statusnet-info" ><img id="statusnet-avatar" src="'.$details->profile_image_url.'" /><p id="statusnet-info-block">'.t('Currently connected to: ').'<a href="'.$details->statusnet_profile_url.'" target="_statusnet">'.$details->screen_name.'</a><br /><em>'.$details->description.'</em></p></div>';
$s .= '<p>'.t('If enabled all your <strong>public</strong> postings will be posted to the associated StatusNet account as well.').'</p>';
$s .= '<div id="statusnet-enable-wrapper">';
$s .= '<label id="statusnet-enable-label" for="statusnet-checkbox">'.t('Send public postings to StatusNet').'</label>';
$s .= '<input id="statusnet-checkbox" type="checkbox" name="statusnet-enable" value="1" ' . $checked . '/>';
$s .= '</div><div class="clear"></div>';
$s .= '<div id="statusnet-disconnect-wrapper">';
$s .= '<label id="statusnet-disconnect-label" for="statusnet-disconnect">'.t('Clear OAuth configuration').'</label>';
$s .= '<input id="statusnet-disconnect" type="checkbox" name="statusnet-disconnect" value="1" />';
$s .= '</div><div class="clear"></div>';
$s .= '<div class="settings-submit-wrapper" ><input type="submit" name="submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
}
}
$s .= '</div><div class="clear"></div>';
}
function statusnet_post_hook(&$a,&$b) {
/**
* Post to statusnet
*/
logger('StatusNet post invoked');
if((local_user()) && (local_user() == $b['uid']) && (! $b['private'])) {
load_pconfig(local_user(), 'statusnet');
$api = get_pconfig(local_user(), 'statusnet', 'baseapi');
$ckey = get_pconfig(local_user(), 'statusnet', 'consumerkey' );
$csecret = get_pconfig(local_user(), 'statusnet', 'consumersecret' );
$otoken = get_pconfig(local_user(), 'statusnet', 'oauthtoken' );
$osecret = get_pconfig(local_user(), 'statusnet', 'oauthsecret' );
if($ckey && $csecret && $otoken && $osecret) {
$statusnet_post = get_pconfig(local_user(),'statusnet','post');
if($statusnet_post) {
require_once('include/bbcode.php');
$dent = new StatusNetOAuth($api,$ckey,$csecret,$otoken,$osecret);
$max_char = $dent->get_maxlength(); // max. length for a dent
$msg = strip_tags(bbcode($b['body']));
if ( strlen($msg) > $max_char) {
$shortlink = "";
require_once('addon/statusnet/slinky.php');
// post url = base url + /display/ + owner + post id
// we construct this from the Owner link and replace
// profile by display - this will cause an error when
// /profile/ is in the owner url twice but I don't
// think this will be very common...
$posturl = str_replace('/profile/','/display/',$b['owner-link']).'/'.$b['id'];
$slinky = new Slinky( $posturl );
// setup a cascade of shortening services
// try to get a short link from these services
// in the order ur1.ca, trim, id.gd, tinyurl
$slinky->set_cascade( array( new Slinky_UR1ca(), new Slinky_Trim(), new Slinky_IsGd(), new Slinky_TinyURL() ) );
$shortlink = $slinky->short();
// the new message will be shortened such that "... $shortlink"
// will fit into the character limit
$msg = substr($msg, 0, $max_char-strlen($shortlink)-4);
$msg .= '... ' . $shortlink;
}
// and now tweet it :-)
$dent->post('statuses/update', array('status' => $msg));
}
}
}
}

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<?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('addon/twitter/OAuth.php');
/**
* 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 = TRUE;
/* 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);
}
}