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File: example/GoogleClient/service/Google_Utils.php

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File: example/GoogleClient/service/Google_Utils.php
Role: Example script
Content type: text/plain
Description: Example script
Class: Viv OAuth IMAP
Access messages in IMAP server using OAuth token
Author: By
Last change: Update of example/GoogleClient/service/Google_Utils.php
Date: 9 months ago
Size: 3,704 bytes
 

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<?php
/*
 * Copyright 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Collection of static utility methods used for convenience across
 * the client library.
 *
 * @author Chirag Shah <chirags@google.com>
 */
class Google_Utils {
  public static function
urlSafeB64Encode($data) {
   
$b64 = base64_encode($data);
   
$b64 = str_replace(array('+', '/', '\r', '\n', '='),
                       array(
'-', '_'),
                      
$b64);
    return
$b64;
  }

  public static function
urlSafeB64Decode($b64) {
   
$b64 = str_replace(array('-', '_'),
                       array(
'+', '/'),
                      
$b64);
    return
base64_decode($b64);
  }

 
/**
   * Misc function used to count the number of bytes in a post body, in the world of multi-byte chars
   * and the unpredictability of strlen/mb_strlen/sizeof, this is the only way to do that in a sane
   * manner at the moment.
   *
   * This algorithm was originally developed for the
   * Solar Framework by Paul M. Jones
   *
   * @link http://solarphp.com/
   * @link http://svn.solarphp.com/core/trunk/Solar/Json.php
   * @link http://framework.zend.com/svn/framework/standard/trunk/library/Zend/Json/Decoder.php
   * @param string $str
   * @return int The number of bytes in a string.
   */
 
static public function getStrLen($str) {
   
$strlenVar = strlen($str);
   
$d = $ret = 0;
    for (
$count = 0; $count < $strlenVar; ++ $count) {
     
$ordinalValue = ord($str{$ret});
      switch (
true) {
        case ((
$ordinalValue >= 0x20) && ($ordinalValue <= 0x7F)):
         
// characters U-00000000 - U-0000007F (same as ASCII)
         
$ret ++;
          break;

        case ((
$ordinalValue & 0xE0) == 0xC0):
         
// characters U-00000080 - U-000007FF, mask 110XXXXX
          // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
         
$ret += 2;
          break;

        case ((
$ordinalValue & 0xF0) == 0xE0):
         
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
          // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
         
$ret += 3;
          break;

        case ((
$ordinalValue & 0xF8) == 0xF0):
         
// characters U-00010000 - U-001FFFFF, mask 11110XXX
          // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
         
$ret += 4;
          break;

        case ((
$ordinalValue & 0xFC) == 0xF8):
         
// characters U-00200000 - U-03FFFFFF, mask 111110XX
          // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
         
$ret += 5;
          break;

        case ((
$ordinalValue & 0xFE) == 0xFC):
         
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
          // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
         
$ret += 6;
          break;
        default:
         
$ret ++;
      }
    }
    return
$ret;
  }

 
/**
   * Normalize all keys in an array to lower-case.
   * @param array $arr
   * @return array Normalized array.
   */
 
public static function normalize($arr) {
    if (!
is_array($arr)) {
      return array();
    }

   
$normalized = array();
    foreach (
$arr as $key => $val) {
     
$normalized[strtolower($key)] = $val;
    }
    return
$normalized;
  }
}