/3.0/obsolete/web_client/application/libraries/G3Remote.php
PHP | 298 lines | 202 code | 37 blank | 59 comment | 33 complexity | 2e9fa1cf0f7a792f8bbb81d4e3f6f4d6 MD5 | raw file
Possible License(s): GPL-3.0, GPL-2.0, LGPL-2.1
- <?php defined('SYSPATH') OR die('No direct access allowed.');
- /**
- * Gallery - a web based photo album viewer and editor
- * Copyright (C) 2000-2013 Bharat Mediratta
- *
- * 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 2 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, write to the Free Software
- * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
- */
- // This class does not depend on any Kohana services so that it can be used in non-Kohana
- // applications.
- class G3Remote {
- protected static $_instance;
- private $_gallery3_site;
- private $_access_token;
- public static function instance($site=null, $access_token=null) {
- if (!isset(G3Remote::$_instance)) {
- G3Remote::$_instance = new G3Remote($site, $access_token);
- }
- return G3Remote::$_instance;
- }
- /**
- * Constructs a new G3Remote object
- *
- * @param array Database config array
- * @return G3Remote
- */
- protected function __construct($site, $access_token) {
- // Store the config locally
- $this->_gallery3_site = $site;
- $this->_access_token = $access_token;
- }
- public function get_access_token($user, $password) {
- $request = "{$this->_gallery3_site}/access_key";
- list ($response_status, $response_headers, $response_body) =
- G3Remote::_get($request, array("user" => $user, "password" => $password));
- if (G3Remote::_success($response_status)) {
- $response = json_decode($response_body);
- if ($response->status == "OK") {
- $this->_access_token = $response->token;
- } else {
- throw new Exception("Remote host failure: {$response->message}");
- }
- } else {
- throw new Exception("Remote host failure: $response_status");
- }
- return $this->_access_token;
- }
- public function get_resource($path, $params=array()) {
- return $this->_do_request("get", $path, $params);
- }
- public function delete_resource($path) {
- return $this->_do_request("delete", $path);
- }
- public function update_resource($path, $params) {
- return $this->_do_request("put", $path, $params);
- }
- public function add_resource($path, $params) {
- return $this->_do_request("post", $path, $params);
- }
- private function _do_request($method, $path, $params=array()) {
- $request_path = "{$this->_gallery3_site}/$path";
- $headers = array();
- if ($method == "put" || $method == "delete") {
- $headers["X_GALLERY_REQUEST_METHOD"] = $method;
- $method = "post";
- }
- if (!empty($this->_access_token)) {
- $headers["X_GALLERY_REQUEST_KEY"] = $this->_access_token;
- }
- list ($response_status, $response_headers, $response_body) =
- $method == "get" ? G3Remote::_get($request_path, $params, $headers) :
- G3Remote::_post($request_path, $params, $headers);
- if (G3Remote::_success($response_status)) {
- $response = json_decode($response_body);
- switch ($response->status) {
- case "OK":
- case "VALIDATE_ERROR":
- return $response;
- default:
- throw new Exception("Remote host failure: {$response->message}");
- }
- } else {
- throw new Exception("Remote host failure: $response_status");
- }
- }
- private static function _post($url, $post_data_array, $extra_headers=array()) {
- $boundary = str_repeat("-", 9) . md5(microtime());
- $boundary_length = strlen($boundary);
- $extra_headers['Content-Type'] = "multipart/form-data; boundary=$boundary";
- $length = 0;
- $fields = array();
- foreach ($post_data_array as $field => $value) {
- $fields[$field] = array();
- if (is_string($value)) {
- $fields[$field]["disposition"] = "Content-Disposition: form-data; name=\"$field\"\r\n\r\n";
- $fields[$field]["type"] = "";
- $fields[$field]["value"] = "$value\r\n";
- } else {
- $fields[$field]["disposition"] =
- "Content-Disposition: form-data; name=\"$field\"; filename=\"{$value->name}\"\r\n";
- $fields[$field]["type"] = "Content-Type: {$value->type}\r\n\r\n";
- $fields[$field]["value"] = "\r\n";
- $fields[$field]["local_file"] = $value->tmp_name;
- $length += $value->size;
- }
- $length += strlen($fields[$field]["disposition"]) + strlen($fields[$field]["value"]) +
- strlen($fields[$field]["type"]) + $boundary_length + 4;
- }
- $length += $boundary_length + 6; // boundary terminator and last crlf
- $extra_headers['Content-Length'] = $length;
- $socket = G3Remote::_open_socket($url, 'POST', $extra_headers);
- $sent_length = 0;
- foreach ($fields as $field => $value) {
- $sent_length += fwrite($socket, "--$boundary\r\n");
- $sent_length += fwrite($socket, $value["disposition"]);
- if (!empty($value["type"])) {
- $sent_length += fwrite($socket, $value["type"]);
- $file = fopen($value["local_file"], "rb");
- while (!feof($file)) {
- $buffer = fread($file, 8192);
- $sent_length += fwrite($socket, $buffer);
- fflush($socket);
- }
- }
- $sent_length += fwrite($socket, $value["value"]);
- fflush($socket);
- }
- $sent_length += fwrite($socket, "--$boundary--\r\n");
- fflush($socket);
- /* Read the web page into a buffer */
- return G3Remote::_get_response($socket);
- }
- private static function _get($url, $_data_array=array(), $extra_headers=array()) {
- $_data_raw = self::_encode_data($_data_array, $extra_headers);
- $handle = G3Remote::_open_socket("{$url}?$_data_raw", "GET", $extra_headers);
- /* Read the web page into a buffer */
- return G3Remote::_get_response($handle);
- }
- private static function _success($response_status) {
- return preg_match("/^HTTP\/\d+\.\d+\s2\d{2}(\s|$)/", trim($response_status));
- }
- /**
- * Encode the data. For each key/value pair, urlencode both the key and the value and then
- * concatenate together. As per the specification, each key/value pair is separated with an
- * ampersand (&)
- * @param array $data_array the key/value data
- * @param array $extra_headers extra headers to pass to the server
- * @return string the encoded post data
- */
- private static function _encode_data($_data_array, &$extra_headers) {
- $_data_raw = '';
- foreach ($_data_array as $key => $value) {
- if (!empty($_data_raw)) {
- $_data_raw .= '&';
- }
- $_data_raw .= urlencode($key) . '=' . urlencode($value);
- }
- return $_data_raw;
- }
- /**
- * Open the socket to server
- */
- static function _open_socket($url, $method='GET', $headers=array()) {
- /* Convert illegal characters */
- $url = str_replace(' ', '%20', $url);
- $url_components = self::_parse_url_for_fsockopen($url);
- $handle = fsockopen(
- $url_components['fsockhost'], $url_components['port'], $errno, $errstr, 5);
- if (empty($handle)) {
- return array(null, null, null);
- }
- $header_lines = array('Host: ' . $url_components['host']);
- foreach ($headers as $key => $value) {
- $header_lines[] = $key . ': ' . $value;
- }
- $success = fwrite($handle, sprintf("%s %s HTTP/1.0\r\n%s\r\n\r\n",
- $method,
- $url_components['uri'],
- implode("\r\n", $header_lines)));
- fflush($handle);
- return $handle;
- }
- /**
- * Read the http response
- */
- static function _get_response($handle) {
- /*
- * Read the status line. fgets stops after newlines. The first line is the protocol
- * version followed by a numeric status code and its associated textual phrase.
- */
- $response_status = trim(fgets($handle, 4096));
- if (empty($response_status)) {
- // 'Empty http response code, maybe timeout'
- return array(null, null, null);
- }
- /* Read the headers */
- $response_headers = array();
- while (!feof($handle)) {
- $line = trim(fgets($handle, 4096));
- if (empty($line)) {
- break;
- }
- /* Normalize the line endings */
- $line = str_replace("\r", '', $line);
- list ($key, $value) = explode(':', $line, 2);
- if (isset($response_headers[$key])) {
- if (!is_array($response_headers[$key])) {
- $response_headers[$key] = array($response_headers[$key]);
- }
- $response_headers[$key][] = trim($value);
- } else {
- $response_headers[$key] = trim($value);
- }
- }
- /* Read the body */
- $response_body = '';
- while (!feof($handle)) {
- $response_body .= fread($handle, 4096);
- }
- fclose($handle);
- return array($response_status, $response_headers, $response_body);
- }
- /**
- * Prepare for fsockopen call.
- * @param string $url
- * @return array url components
- * @access private
- */
- private static function _parse_url_for_fsockopen($url) {
- $url_components = parse_url($url);
- if (strtolower($url_components['scheme']) == 'https') {
- $url_components['fsockhost'] = 'ssl://' . $url_components['host'];
- $default_port = 443;
- } else {
- $url_components['fsockhost'] = $url_components['host'];
- $default_port = 80;
- }
- if (empty($url_components['port'])) {
- $url_components['port'] = $default_port;
- }
- if (empty($url_components['path'])) {
- $url_components['path'] = '/';
- }
- $uri = $url_components['path']
- . (empty($url_components['query']) ? '' : '?' . $url_components['query']);
- /* Unescape ampersands, since if the url comes from form input it will be escaped */
- $url_components['uri'] = str_replace('&', '&', $uri);
- return $url_components;
- }
- }