| 1 |
<?php |
| 2 |
/* |
| 3 |
* Copyright 2010 Google Inc. |
| 4 |
* |
| 5 |
* Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 |
* you may not use this file except in compliance with the License. |
| 7 |
* You may obtain a copy of the License at |
| 8 |
* |
| 9 |
* http://www.apache.org/licenses/LICENSE-2.0 |
| 10 |
* |
| 11 |
* Unless required by applicable law or agreed to in writing, software |
| 12 |
* distributed under the License is distributed on an "AS IS" BASIS, |
| 13 |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 |
* See the License for the specific language governing permissions and |
| 15 |
* limitations under the License. |
| 16 |
*/ |
| 17 |
|
| 18 |
/** |
| 19 |
* HTTP Request to be executed by apiIO classes. Upon execution, the |
| 20 |
* responseHttpCode, responseHeaders and responseBody will be filled in. |
| 21 |
* |
| 22 |
* @author Chris Chabot <chabotc@google.com> |
| 23 |
* @author Chirag Shah <chirags@google.com> |
| 24 |
* |
| 25 |
*/ |
| 26 |
class Google_HttpRequest { |
| 27 |
const USER_AGENT_SUFFIX = "google-api-php-client/0.6.0"; |
| 28 |
private $batchHeaders = array( |
| 29 |
'Content-Type' => 'application/http', |
| 30 |
'Content-Transfer-Encoding' => 'binary', |
| 31 |
'MIME-Version' => '1.0', |
| 32 |
'Content-Length' => '' |
| 33 |
); |
| 34 |
|
| 35 |
protected $url; |
| 36 |
protected $requestMethod; |
| 37 |
protected $requestHeaders; |
| 38 |
protected $postBody; |
| 39 |
protected $userAgent; |
| 40 |
|
| 41 |
protected $responseHttpCode; |
| 42 |
protected $responseHeaders; |
| 43 |
protected $responseBody; |
| 44 |
|
| 45 |
public $accessKey; |
| 46 |
|
| 47 |
public function __construct($url, $method = 'GET', $headers = array(), $postBody = null) { |
| 48 |
$this->setUrl($url); |
| 49 |
$this->setRequestMethod($method); |
| 50 |
$this->setRequestHeaders($headers); |
| 51 |
$this->setPostBody($postBody); |
| 52 |
|
| 53 |
global $apiConfig; |
| 54 |
if (empty($apiConfig['application_name'])) { |
| 55 |
$this->userAgent = self::USER_AGENT_SUFFIX; |
| 56 |
} else { |
| 57 |
$this->userAgent = $apiConfig['application_name'] . " " . self::USER_AGENT_SUFFIX; |
| 58 |
} |
| 59 |
} |
| 60 |
|
| 61 |
/** |
| 62 |
* Misc function that returns the base url component of the $url |
| 63 |
* used by the OAuth signing class to calculate the base string |
| 64 |
* @return string The base url component of the $url. |
| 65 |
* @see http://oauth.net/core/1.0a/#anchor13 |
| 66 |
*/ |
| 67 |
public function getBaseUrl() { |
| 68 |
if ($pos = strpos($this->url, '?')) { |
| 69 |
return substr($this->url, 0, $pos); |
| 70 |
} |
| 71 |
return $this->url; |
| 72 |
} |
| 73 |
|
| 74 |
/** |
| 75 |
* Misc function that returns an array of the query parameters of the current |
| 76 |
* url used by the OAuth signing class to calculate the signature |
| 77 |
* @return array Query parameters in the query string. |
| 78 |
*/ |
| 79 |
public function getQueryParams() { |
| 80 |
if ($pos = strpos($this->url, '?')) { |
| 81 |
$queryStr = substr($this->url, $pos + 1); |
| 82 |
$params = array(); |
| 83 |
parse_str($queryStr, $params); |
| 84 |
return $params; |
| 85 |
} |
| 86 |
return array(); |
| 87 |
} |
| 88 |
|
| 89 |
/** |
| 90 |
* @return string HTTP Response Code. |
| 91 |
*/ |
| 92 |
public function getResponseHttpCode() { |
| 93 |
return (int) $this->responseHttpCode; |
| 94 |
} |
| 95 |
|
| 96 |
/** |
| 97 |
* @param int $responseHttpCode HTTP Response Code. |
| 98 |
*/ |
| 99 |
public function setResponseHttpCode($responseHttpCode) { |
| 100 |
$this->responseHttpCode = $responseHttpCode; |
| 101 |
} |
| 102 |
|
| 103 |
/** |
| 104 |
* @return $responseHeaders (array) HTTP Response Headers. |
| 105 |
*/ |
| 106 |
public function getResponseHeaders() { |
| 107 |
return $this->responseHeaders; |
| 108 |
} |
| 109 |
|
| 110 |
/** |
| 111 |
* @return string HTTP Response Body |
| 112 |
*/ |
| 113 |
public function getResponseBody() { |
| 114 |
return $this->responseBody; |
| 115 |
} |
| 116 |
|
| 117 |
/** |
| 118 |
* @param array $headers The HTTP response headers |
| 119 |
* to be normalized. |
| 120 |
*/ |
| 121 |
public function setResponseHeaders($headers) { |
| 122 |
$headers = Google_Utils::normalize($headers); |
| 123 |
if ($this->responseHeaders) { |
| 124 |
$headers = array_merge($this->responseHeaders, $headers); |
| 125 |
} |
| 126 |
|
| 127 |
$this->responseHeaders = $headers; |
| 128 |
} |
| 129 |
|
| 130 |
/** |
| 131 |
* @param string $key |
| 132 |
* @return array|boolean Returns the requested HTTP header or |
| 133 |
* false if unavailable. |
| 134 |
*/ |
| 135 |
public function getResponseHeader($key) { |
| 136 |
return isset($this->responseHeaders[$key]) |
| 137 |
? $this->responseHeaders[$key] |
| 138 |
: false; |
| 139 |
} |
| 140 |
|
| 141 |
/** |
| 142 |
* @param string $responseBody The HTTP response body. |
| 143 |
*/ |
| 144 |
public function setResponseBody($responseBody) { |
| 145 |
$this->responseBody = $responseBody; |
| 146 |
} |
| 147 |
|
| 148 |
/** |
| 149 |
* @return string $url The request URL. |
| 150 |
*/ |
| 151 |
|
| 152 |
public function getUrl() { |
| 153 |
return $this->url; |
| 154 |
} |
| 155 |
|
| 156 |
/** |
| 157 |
* @return string $method HTTP Request Method. |
| 158 |
*/ |
| 159 |
public function getRequestMethod() { |
| 160 |
return $this->requestMethod; |
| 161 |
} |
| 162 |
|
| 163 |
/** |
| 164 |
* @return array $headers HTTP Request Headers. |
| 165 |
*/ |
| 166 |
public function getRequestHeaders() { |
| 167 |
return $this->requestHeaders; |
| 168 |
} |
| 169 |
|
| 170 |
/** |
| 171 |
* @param string $key |
| 172 |
* @return array|boolean Returns the requested HTTP header or |
| 173 |
* false if unavailable. |
| 174 |
*/ |
| 175 |
public function getRequestHeader($key) { |
| 176 |
return isset($this->requestHeaders[$key]) |
| 177 |
? $this->requestHeaders[$key] |
| 178 |
: false; |
| 179 |
} |
| 180 |
|
| 181 |
/** |
| 182 |
* @return string $postBody HTTP Request Body. |
| 183 |
*/ |
| 184 |
public function getPostBody() { |
| 185 |
return $this->postBody; |
| 186 |
} |
| 187 |
|
| 188 |
/** |
| 189 |
* @param string $url the url to set |
| 190 |
*/ |
| 191 |
public function setUrl($url) { |
| 192 |
if (substr($url, 0, 4) == 'http') { |
| 193 |
$this->url = $url; |
| 194 |
} else { |
| 195 |
// Force the path become relative. |
| 196 |
if (substr($url, 0, 1) !== '/') { |
| 197 |
$url = '/' . $url; |
| 198 |
} |
| 199 |
global $apiConfig; |
| 200 |
$this->url = $apiConfig['basePath'] . $url; |
| 201 |
} |
| 202 |
} |
| 203 |
|
| 204 |
/** |
| 205 |
* @param string $method Set he HTTP Method and normalize |
| 206 |
* it to upper-case, as required by HTTP. |
| 207 |
* |
| 208 |
*/ |
| 209 |
public function setRequestMethod($method) { |
| 210 |
$this->requestMethod = strtoupper($method); |
| 211 |
} |
| 212 |
|
| 213 |
/** |
| 214 |
* @param array $headers The HTTP request headers |
| 215 |
* to be set and normalized. |
| 216 |
*/ |
| 217 |
public function setRequestHeaders($headers) { |
| 218 |
$headers = Google_Utils::normalize($headers); |
| 219 |
if ($this->requestHeaders) { |
| 220 |
$headers = array_merge($this->requestHeaders, $headers); |
| 221 |
} |
| 222 |
$this->requestHeaders = $headers; |
| 223 |
} |
| 224 |
|
| 225 |
/** |
| 226 |
* @param string $postBody the postBody to set |
| 227 |
*/ |
| 228 |
public function setPostBody($postBody) { |
| 229 |
$this->postBody = $postBody; |
| 230 |
} |
| 231 |
|
| 232 |
/** |
| 233 |
* Set the User-Agent Header. |
| 234 |
* @param string $userAgent The User-Agent. |
| 235 |
*/ |
| 236 |
public function setUserAgent($userAgent) { |
| 237 |
$this->userAgent = $userAgent; |
| 238 |
} |
| 239 |
|
| 240 |
/** |
| 241 |
* @return string The User-Agent. |
| 242 |
*/ |
| 243 |
public function getUserAgent() { |
| 244 |
return $this->userAgent; |
| 245 |
} |
| 246 |
|
| 247 |
/** |
| 248 |
* Returns a cache key depending on if this was an OAuth signed request |
| 249 |
* in which case it will use the non-signed url and access key to make this |
| 250 |
* cache key unique per authenticated user, else use the plain request url |
| 251 |
* @return string The md5 hash of the request cache key. |
| 252 |
*/ |
| 253 |
public function getCacheKey() { |
| 254 |
$key = $this->getUrl(); |
| 255 |
|
| 256 |
if (isset($this->accessKey)) { |
| 257 |
$key .= $this->accessKey; |
| 258 |
} |
| 259 |
|
| 260 |
if (isset($this->requestHeaders['authorization'])) { |
| 261 |
$key .= $this->requestHeaders['authorization']; |
| 262 |
} |
| 263 |
|
| 264 |
return md5($key); |
| 265 |
} |
| 266 |
|
| 267 |
public function getParsedCacheControl() { |
| 268 |
$parsed = array(); |
| 269 |
$rawCacheControl = $this->getResponseHeader('cache-control'); |
| 270 |
if ($rawCacheControl) { |
| 271 |
$rawCacheControl = str_replace(', ', '&', $rawCacheControl); |
| 272 |
parse_str($rawCacheControl, $parsed); |
| 273 |
} |
| 274 |
|
| 275 |
return $parsed; |
| 276 |
} |
| 277 |
|
| 278 |
/** |
| 279 |
* @param string $id |
| 280 |
* @return string A string representation of the HTTP Request. |
| 281 |
*/ |
| 282 |
public function toBatchString($id) { |
| 283 |
$str = ''; |
| 284 |
foreach($this->batchHeaders as $key => $val) { |
| 285 |
$str .= $key . ': ' . $val . "\n"; |
| 286 |
} |
| 287 |
|
| 288 |
$str .= "Content-ID: $id\n"; |
| 289 |
$str .= "\n"; |
| 290 |
|
| 291 |
$path = parse_url($this->getUrl(), PHP_URL_PATH); |
| 292 |
$str .= $this->getRequestMethod() . ' ' . $path . " HTTP/1.1\n"; |
| 293 |
foreach($this->getRequestHeaders() as $key => $val) { |
| 294 |
$str .= $key . ': ' . $val . "\n"; |
| 295 |
} |
| 296 |
|
| 297 |
if ($this->getPostBody()) { |
| 298 |
$str .= "\n"; |
| 299 |
$str .= $this->getPostBody(); |
| 300 |
} |
| 301 |
|
| 302 |
return $str; |
| 303 |
} |
| 304 |
} |
| 305 |
|