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authorCash Costello <cash.costello@gmail.com>2011-12-11 07:46:10 -0500
committerCash Costello <cash.costello@gmail.com>2011-12-11 07:46:10 -0500
commit06ea39aed597f94b8a754b05ca60d005167367b7 (patch)
tree070c7327aa78eed720c21bf47f92b6e1d44b76d3 /vendors/php-openid/Auth/Yadis/PlainHTTPFetcher.php
downloadelgg-06ea39aed597f94b8a754b05ca60d005167367b7.tar.gz
elgg-06ea39aed597f94b8a754b05ca60d005167367b7.tar.bz2
initial commmit
Diffstat (limited to 'vendors/php-openid/Auth/Yadis/PlainHTTPFetcher.php')
-rw-r--r--vendors/php-openid/Auth/Yadis/PlainHTTPFetcher.php248
1 files changed, 248 insertions, 0 deletions
diff --git a/vendors/php-openid/Auth/Yadis/PlainHTTPFetcher.php b/vendors/php-openid/Auth/Yadis/PlainHTTPFetcher.php
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@@ -0,0 +1,248 @@
+<?php
+
+/**
+ * This module contains the plain non-curl HTTP fetcher
+ * implementation.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: See the COPYING file included in this distribution.
+ *
+ * @package OpenID
+ * @author JanRain, Inc. <openid@janrain.com>
+ * @copyright 2005-2008 Janrain, Inc.
+ * @license http://www.apache.org/licenses/LICENSE-2.0 Apache
+ */
+
+/**
+ * Interface import
+ */
+require_once "Auth/Yadis/HTTPFetcher.php";
+
+/**
+ * This class implements a plain, hand-built socket-based fetcher
+ * which will be used in the event that CURL is unavailable.
+ *
+ * @package OpenID
+ */
+class Auth_Yadis_PlainHTTPFetcher extends Auth_Yadis_HTTPFetcher {
+ /**
+ * Does this fetcher support SSL URLs?
+ */
+ function supportsSSL()
+ {
+ return function_exists('openssl_open');
+ }
+
+ function get($url, $extra_headers = null)
+ {
+ if (!$this->canFetchURL($url)) {
+ return null;
+ }
+
+ $redir = true;
+
+ $stop = time() + $this->timeout;
+ $off = $this->timeout;
+
+ while ($redir && ($off > 0)) {
+
+ $parts = parse_url($url);
+
+ $specify_port = true;
+
+ // Set a default port.
+ if (!array_key_exists('port', $parts)) {
+ $specify_port = false;
+ if ($parts['scheme'] == 'http') {
+ $parts['port'] = 80;
+ } elseif ($parts['scheme'] == 'https') {
+ $parts['port'] = 443;
+ } else {
+ return null;
+ }
+ }
+
+ if (!array_key_exists('path', $parts)) {
+ $parts['path'] = '/';
+ }
+
+ $host = $parts['host'];
+
+ if ($parts['scheme'] == 'https') {
+ $host = 'ssl://' . $host;
+ }
+
+ $user_agent = Auth_OpenID_USER_AGENT;
+
+ $headers = array(
+ "GET ".$parts['path'].
+ (array_key_exists('query', $parts) ?
+ "?".$parts['query'] : "").
+ " HTTP/1.0",
+ "User-Agent: $user_agent",
+ "Host: ".$parts['host'].
+ ($specify_port ? ":".$parts['port'] : ""),
+ "Port: ".$parts['port']);
+
+ $errno = 0;
+ $errstr = '';
+
+ if ($extra_headers) {
+ foreach ($extra_headers as $h) {
+ $headers[] = $h;
+ }
+ }
+
+ @$sock = fsockopen($host, $parts['port'], $errno, $errstr,
+ $this->timeout);
+ if ($sock === false) {
+ return false;
+ }
+
+ stream_set_timeout($sock, $this->timeout);
+
+ fputs($sock, implode("\r\n", $headers) . "\r\n\r\n");
+
+ $data = "";
+ $kilobytes = 0;
+ while (!feof($sock) &&
+ $kilobytes < Auth_OpenID_FETCHER_MAX_RESPONSE_KB ) {
+ $data .= fgets($sock, 1024);
+ $kilobytes += 1;
+ }
+
+ fclose($sock);
+
+ // Split response into header and body sections
+ list($headers, $body) = explode("\r\n\r\n", $data, 2);
+ $headers = explode("\r\n", $headers);
+
+ $http_code = explode(" ", $headers[0]);
+ $code = $http_code[1];
+
+ if (in_array($code, array('301', '302'))) {
+ $url = $this->_findRedirect($headers, $url);
+ $redir = true;
+ } else {
+ $redir = false;
+ }
+
+ $off = $stop - time();
+ }
+
+ $new_headers = array();
+
+ foreach ($headers as $header) {
+ if (preg_match("/:/", $header)) {
+ $parts = explode(": ", $header, 2);
+
+ if (count($parts) == 2) {
+ list($name, $value) = $parts;
+ $new_headers[$name] = $value;
+ }
+ }
+
+ }
+
+ return new Auth_Yadis_HTTPResponse($url, $code, $new_headers, $body);
+ }
+
+ function post($url, $body, $extra_headers = null)
+ {
+ if (!$this->canFetchURL($url)) {
+ return null;
+ }
+
+ $parts = parse_url($url);
+
+ $headers = array();
+
+ $post_path = $parts['path'];
+ if (isset($parts['query'])) {
+ $post_path .= '?' . $parts['query'];
+ }
+
+ $headers[] = "POST ".$post_path." HTTP/1.0";
+ $headers[] = "Host: " . $parts['host'];
+ $headers[] = "Content-type: application/x-www-form-urlencoded";
+ $headers[] = "Content-length: " . strval(strlen($body));
+
+ if ($extra_headers &&
+ is_array($extra_headers)) {
+ $headers = array_merge($headers, $extra_headers);
+ }
+
+ // Join all headers together.
+ $all_headers = implode("\r\n", $headers);
+
+ // Add headers, two newlines, and request body.
+ $request = $all_headers . "\r\n\r\n" . $body;
+
+ // Set a default port.
+ if (!array_key_exists('port', $parts)) {
+ if ($parts['scheme'] == 'http') {
+ $parts['port'] = 80;
+ } elseif ($parts['scheme'] == 'https') {
+ $parts['port'] = 443;
+ } else {
+ return null;
+ }
+ }
+
+ if ($parts['scheme'] == 'https') {
+ $parts['host'] = sprintf("ssl://%s", $parts['host']);
+ }
+
+ // Connect to the remote server.
+ $errno = 0;
+ $errstr = '';
+
+ $sock = fsockopen($parts['host'], $parts['port'], $errno, $errstr,
+ $this->timeout);
+
+ if ($sock === false) {
+ return null;
+ }
+
+ stream_set_timeout($sock, $this->timeout);
+
+ // Write the POST request.
+ fputs($sock, $request);
+
+ // Get the response from the server.
+ $response = "";
+ while (!feof($sock)) {
+ if ($data = fgets($sock, 128)) {
+ $response .= $data;
+ } else {
+ break;
+ }
+ }
+
+ // Split the request into headers and body.
+ list($headers, $response_body) = explode("\r\n\r\n", $response, 2);
+
+ $headers = explode("\r\n", $headers);
+
+ // Expect the first line of the headers data to be something
+ // like HTTP/1.1 200 OK. Split the line on spaces and take
+ // the second token, which should be the return code.
+ $http_code = explode(" ", $headers[0]);
+ $code = $http_code[1];
+
+ $new_headers = array();
+
+ foreach ($headers as $header) {
+ if (preg_match("/:/", $header)) {
+ list($name, $value) = explode(": ", $header, 2);
+ $new_headers[$name] = $value;
+ }
+
+ }
+
+ return new Auth_Yadis_HTTPResponse($url, $code,
+ $new_headers, $response_body);
+ }
+}
+