Updated Phirehose installation. See issue #26 for more information.

magsol · Oct 10, 2011 · 167f11c · 167f11c
1 parent 64a1339
commit 167f11c
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diff --git a/phirehose/OauthPhirehose.php b/phirehose/OauthPhirehose.php
@@ -0,0 +1,157 @@
+<?php
+
+abstract class OauthPhirehose extends Phirehose
+{
+
+	protected $auth_method;
+
+    /**
+    * The Twitter consumer key. Get it from the application's page on Twitter.
+    * If not set then the global define TWITTER_CONSUMER_KEY is used instead.
+    */
+    public $consumerKey=null;
+
+    /**
+    * The Twitter consumer secret. Get it from the application's page on Twitter.
+    * If not set then the global define TWITTER_CONSUMER_SECRET is used instead.
+    */
+    public $consumerSecret=null;
+
+
+    /**
+    */
+	protected function prepareParameters($method = null, $url = null,
+		array $params)
+	{
+		if (empty($method) || empty($url))
+			return false;
+
+		$oauth['oauth_consumer_key'] = $this->consumerKey?$this->consumerKey:TWITTER_CONSUMER_KEY;
+		$oauth['oauth_nonce'] = md5(uniqid(rand(), true));
+		$oauth['oauth_signature_method'] = 'HMAC-SHA1';
+		$oauth['oauth_timestamp'] = time();
+		$oauth['oauth_version'] = '1.0';
+		$oauth['oauth_token'] = $this->username;
+		if (isset($params['oauth_verifier']))
+		{
+			$oauth['oauth_verifier'] = $params['oauth_verifier'];
+			unset($params['oauth_verifier']);
+		}
+		// encode all oauth values
+		foreach ($oauth as $k => $v)
+			$oauth[$k] = $this->encode_rfc3986($v);
+
+		// encode all non '@' params
+		// keep sigParams for signature generation (exclude '@' params)
+		// rename '@key' to 'key'
+		$sigParams = array();
+		$hasFile = false;
+		if (is_array($params))
+		{
+			foreach ($params as $k => $v)
+			{
+				if (strncmp('@', $k, 1) !== 0)
+				{
+					$sigParams[$k] = $this->encode_rfc3986($v);
+					$params[$k] = $this->encode_rfc3986($v);
+				}
+				else
+				{
+					$params[substr($k, 1)] = $v;
+					unset($params[$k]);
+					$hasFile = true;
+				}
+			}
+
+			if ($hasFile === true)
+				$sigParams = array();
+		}
+
+		$sigParams = array_merge($oauth, (array) $sigParams);
+
+		// sorting
+		ksort($sigParams);
+
+		// signing
+		$oauth['oauth_signature'] = $this->encode_rfc3986($this->generateSignature($method, $url, $sigParams));
+		return array('request' => $params, 'oauth' => $oauth);
+	}
+
+	protected function encode_rfc3986($string)
+	{
+		return str_replace('+', ' ', str_replace('%7E', '~', rawurlencode(($string))));
+	}
+
+	protected function generateSignature($method = null, $url = null,
+		$params = null)
+	{
+		if (empty($method) || empty($url))
+			return false;
+
+		// concatenating and encode
+		$concat = '';
+		foreach ((array) $params as $key => $value)
+			$concat .= "{$key}={$value}&";
+		$concat = substr($concat, 0, -1);
+		$concatenatedParams = $this->encode_rfc3986($concat);
+
+		// normalize url
+		$urlParts = parse_url($url);
+		$scheme = strtolower($urlParts['scheme']);
+		$host = strtolower($urlParts['host']);
+		$port = isset($urlParts['port']) ? intval($urlParts['port']) : 0;
+		$retval = strtolower($scheme) . '://' . strtolower($host);
+		if (!empty($port) && (($scheme === 'http' && $port != 80) || ($scheme === 'https' && $port != 443)))
+			$retval .= ":{$port}";
+
+		$retval .= $urlParts['path'];
+		if (!empty($urlParts['query']))
+			$retval .= "?{$urlParts['query']}";
+
+		$normalizedUrl = $this->encode_rfc3986($retval);
+		$method = $this->encode_rfc3986($method); // don't need this but why not?
+
+		$signatureBaseString = "{$method}&{$normalizedUrl}&{$concatenatedParams}";
+
+		# sign the signature string
+		$key = $this->encode_rfc3986($this->consumerSecret?$this->consumerSecret:TWITTER_CONSUMER_SECRET) . '&' . $this->encode_rfc3986($this->password);
+		return base64_encode(hash_hmac('sha1', $signatureBaseString, $key, true));
+	}
+
+	protected function getOAuthHeader($method, $url, $params = array())
+	{
+		$params = $this->prepareParameters($method, $url, $params);
+		$oauthHeaders = $params['oauth'];
+
+		$urlParts = parse_url($url);
+		$oauth = 'OAuth realm="",';
+		foreach ($oauthHeaders as $name => $value)
+		{
+			$oauth .= "{$name}=\"{$value}\",";
+		}
+		$oauth = substr($oauth, 0, -1);
+
+		return $oauth;
+	}
+
+	protected function getAuthorizationHeader()
+	{
+		$url = self::URL_BASE . $this->method . '.' . $this->format;
+		$urlParts = parse_url($url);
+
+		// Setup params appropriately
+		$requestParams = array('delimited' => 'length');
+
+		// Filter takes additional parameters
+		if (count($this->trackWords) > 0)
+		{
+			$requestParams['track'] = implode(',', $this->trackWords);
+		}
+		if (count($this->followIds) > 0)
+		{
+			$requestParams['follow'] = implode(',', $this->followIds);
+		}
+
+		return $this->getOAuthHeader('POST', $url, $requestParams);
+	}
+}