[trick] Library REST Client Yang Compitable Dengan CMS Canvas

bismillah…

Langsung ajah ini salah satu trick, bbrp kali gw coba library yang tersedia ini yang bisa dimanfaatkan.

<?php

if ( ! defined('BASEPATH')) exit('No direct script access allowed');


/**
 * HTTP Class
 *
 * This is a wrapper HTTP class that uses either cURL or fsockopen to 
 * harvest resources from web. This can be used with scripts that need 
 * a way to communicate with various APIs who support REST.
 *
 * @author      Md Emran Hasan <phpfour@gmail.com>
 * @package     HTTP Library
 * @copyright   2007-2008 Md Emran Hasan
 * @link        http://www.phpfour.com/lib/http
 * @since       Version 0.1.1
 */

class Http
{
    /**
     * Contains the target URL
     *
     * @var string
     */
    var $target;
    
    /**
     * Contains the target host
     *
     * @var string
     */
    var $host;
    
    /**
     * Contains the target port
     *
     * @var integer
     */
    var $port;
    
    /**
     * Contains the target path
     *
     * @var string
     */
    var $path;
    
    /**
     * Contains the target schema
     *
     * @var string
     */
    var $schema;
    
    /**
     * Contains the http method (GET or POST)
     *
     * @var string
     */
    var $method;
    
    /**
     * Contains the parameters for request
     *
     * @var array
     */
    var $params;
    
    /**
     * Contains the cookies for request
     *
     * @var array
     */
    var $cookies;
    
    /**
     * Contains the cookies retrieved from response
     *
     * @var array
     */
    var $_cookies;
    
    /**
     * Number of seconds to timeout
     *
     * @var integer
     */
    var $timeout;
    
    /**
     * Whether to use cURL or not
     *
     * @var boolean
     */
    var $useCurl;
    
    /**
     * Contains the referrer URL
     *
     * @var string
     */
    var $referrer;
    
    /**
     * Contains the User agent string
     *
     * @var string
     */
    var $userAgent;
    
    /**
     * Contains the cookie path (to be used with cURL)
     *
     * @var string
     */
    var $cookiePath;
    
    /**
     * Whether to use cookie at all
     *
     * @var boolean
     */
    var $useCookie;
    
    /**
     * Whether to store cookie for subsequent requests
     *
     * @var boolean
     */
    var $saveCookie;
    
    /**
     * Contains the Username (for authentication)
     *
     * @var string
     */
    var $username;
    
    /**
     * Contains the Password (for authentication)
     *
     * @var string
     */
    var $password;
    
    /**
     * Contains the fetched web source
     *
     * @var string
     */
    var $result;
    
    /**
     * Contains the last headers 
     *
     * @var string
     */
    var $headers;
    
    /**
     * Contains the last call's http status code
     *
     * @var string
     */
    var $status;
    
    /**
     * Whether to follow http redirect or not
     *
     * @var boolean
     */
    var $redirect;
    
    /**
     * The maximum number of redirect to follow
     *
     * @var integer
     */
    var $maxRedirect;
    
    /**
     * The current number of redirects
     *
     * @var integer
     */
    var $curRedirect;
    
    /**
     * Contains any error occurred
     *
     * @var string
     */
    var $error;
    
    /**
     * Store the next token
     *
     * @var string
     */
    var $nextToken;
    
    /**
     * Whether to keep debug messages
     *
     * @var boolean
     */
    var $debug;
    
    /**
     * Stores the debug messages
     *
     * @var array
     * @todo will keep debug messages
     */
    var $debugMsg;
    
    /**
     * Constructor for initializing the class with default values.
     * 
     * @return void  
     */
    function Http()
    {
        $this->clear();    
    }
    
    /**
     * Initialize preferences
     * 
     * This function will take an associative array of config values and 
     * will initialize the class variables using them. 
     * 
     * Example use:
     * 
     * <pre>
     * $httpConfig['method']     = 'GET';
     * $httpConfig['target']     = 'http://www.somedomain.com/index.html';
     * $httpConfig['referrer']   = 'http://www.somedomain.com';
     * $httpConfig['user_agent'] = 'My Crawler';
     * $httpConfig['timeout']    = '30';
     * $httpConfig['params']     = array('var1' => 'testvalue', 'var2' => 'somevalue');
     * 
     * $http = new Http();
     * $http->initialize($httpConfig);
     * </pre>
     *
     * @param array Config values as associative array
     * @return void
     */    
    function initialize($config = array())
    {
        $this->clear();
        foreach ($config as $key => $val)
        {
            if (isset($this->$key))
            {
                $method = 'set' . ucfirst(str_replace('_', '', $key));
                
                if (method_exists($this, $method))
                {
                    $this->$method($val);
                }
                else
                {
                    $this->$key = $val;
                }            
            }
        }
    }
    
    /**
     * Clear Everything
     * 
     * Clears all the properties of the class and sets the object to
     * the beginning state. Very handy if you are doing subsequent calls 
     * with different data.
     *
     * @return void
     */
    function clear()
    {
        // Set the request defaults
        $this->host         = '';
        $this->port         = 0;
        $this->path         = '';
        $this->target       = '';
        $this->method       = 'GET';
        $this->schema       = 'http';
        $this->params       = array();
        $this->headers      = array();
        $this->cookies      = array();
        $this->_cookies     = array();
        
        // Set the config details        
        $this->debug        = FALSE;
        $this->error        = '';
        $this->status       = 0;
        $this->timeout      = '25';
        $this->useCurl      = TRUE;
        $this->referrer     = '';
        $this->username     = '';
        $this->password     = '';
        $this->redirect     = TRUE;
        
        // Set the cookie and agent defaults
        $this->nextToken    = '';
        $this->useCookie    = TRUE;
        $this->saveCookie   = TRUE;
        $this->maxRedirect  = 3;
        $this->cookiePath   = 'cookie.txt';
        $this->userAgent    = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.9';
    }
    
    /**
     * Set target URL
     *
     * @param string URL of target resource
     * @return void
     */
    function setTarget($url)
    {
        if ($url)
        {
            $this->target = $url;
        }   
    }
    
    /**
     * Set http method
     *
     * @param string HTTP method to use (GET or POST)
     * @return void
     */
    function setMethod($method)
    {
        if ($method == 'GET' || $method == 'POST')
        {
            $this->method = $method;
        }   
    }
    
    /**
     * Set referrer URL
     *
     * @param string URL of referrer page
     * @return void
     */
    function setReferrer($referrer)
    {
        if ($referrer)
        {
            $this->referrer = $referrer;
        }   
    }
    
    /**
     * Set User agent string
     *
     * @param string Full user agent string
     * @return void
     */
    function setUseragent($agent)
    {
        if ($agent)
        {
            $this->userAgent = $agent;
        }   
    }
    
    /**
     * Set timeout of execution
     *
     * @param integer Timeout delay in seconds
     * @return void
     */
    function setTimeout($seconds)
    {
        if ($seconds > 0)
        {
            $this->timeout = $seconds;
        }   
    }
    
    /**
     * Set cookie path (cURL only)
     *
     * @param string File location of cookiejar
     * @return void
     */
    function setCookiepath($path)
    {
        if ($path)
        {
            $this->cookiePath = $path;
        }   
    }
    
    /**
     * Set request parameters
     *
     * @param array All the parameters for GET or POST
     * @return void
     */
    function setParams($dataArray)
    {
        if (is_array($dataArray))
        {
            $this->params = array_merge($this->params, $dataArray);
        }   
    }
    
    /**
     * Set basic http authentication realm
     *
     * @param string Username for authentication
     * @param string Password for authentication
     * @return void
     */
    function setAuth($username, $password)
    {
        if (!empty($username) && !empty($password))
        {
            $this->username = $username;
            $this->password = $password;
        }
    }
    
    /**
     * Set maximum number of redirection to follow
     *
     * @param integer Maximum number of redirects
     * @return void
     */
    function setMaxredirect($value)
    {
        if (!empty($value))
        {
            $this->maxRedirect = $value;
        }
    }

    /**
     * Add a header to the request
     * 
     * @param string Name of header
     * @param string Value of header
     * @return void
     */
    function addHeader($name, $value){
        if(!empty($name) && !empty($value)){
            $this->headers[] = $name . ": " . $value;
        }
    }
    
    /**
     * Add request parameters
     *
     * @param string Name of the parameter
     * @param string Value of the parameter
     * @return void
     */
    function addParam($name, $value)
    {
        if (!empty($name) && !empty($value))
        {
            $this->params[$name] = $value;
        }   
    }
    
    /**
     * Add a cookie to the request
     *
     * @param string Name of cookie
     * @param string Value of cookie
     * @return void
     */
    function addCookie($name, $value)
    {
        if (!empty($name) && !empty($value))
        {
            $this->cookies[$name] = $value;
        }   
    }
    
    /**
     * Whether to use cURL or not
     *
     * @param boolean Whether to use cURL or not
     * @return void
     */
    function useCurl($value = TRUE)
    {
        if (is_bool($value))
        {
            $this->useCurl = $value;
        }   
    }
    
    /**
     * Whether to use cookies or not
     *
     * @param boolean Whether to use cookies or not
     * @return void
     */
    function useCookie($value = TRUE)
    {
        if (is_bool($value))
        {
            $this->useCookie = $value;
        }   
    }
    
    /**
     * Whether to save persistent cookies in subsequent calls
     *
     * @param boolean Whether to save persistent cookies or not
     * @return void
     */
    function saveCookie($value = TRUE)
    {
        if (is_bool($value))
        {
            $this->saveCookie = $value;
        }   
    }
    
    /**
     * Whether to follow HTTP redirects
     *
     * @param boolean Whether to follow HTTP redirects or not
     * @return void
     */
    function followRedirects($value = TRUE)
    {
        if (is_bool($value))
        {
            $this->redirect = $value;
        }   
    }
    
    /**
     * Get execution result body
     *
     * @return string output of execution
     */
    function getResult()
    {
        return $this->result;
    }
    
    /**
     * Get execution result headers
     *
     * @return array last headers of execution
     */
    function getHeaders()
    {
        return $this->headers;
    }

    /**
     * Get execution status code
     *
     * @return integer last http status code
     */
    function getStatus()
    {
        return $this->status;
    }
        
    /**
     * Get last execution error
     *
     * @return string last error message (if any)
     */
    function getError()
    {
        return $this->error;
    }

    /**
     * Execute a HTTP request
     * 
     * Executes the http fetch using all the set properties. Intellegently
     * switch to fsockopen if cURL is not present. And be smart to follow
     * redirects (if asked so).
     * 
     * @param string URL of the target page (optional)
     * @param string URL of the referrer page (optional)
     * @param string The http method (GET or POST) (optional)
     * @param array Parameter array for GET or POST (optional)
     * @return string Response body of the target page
     */    
    function execute($target = '', $referrer = '', $method = '', $data = array())
    {
        // Populate the properties
        $this->target = ($target) ? $target : $this->target;
        $this->method = ($method) ? $method : $this->method;
        
        $this->referrer = ($referrer) ? $referrer : $this->referrer;
        
        // Add the new params
        if (is_array($data) && count($data) > 0) 
        {
            $this->params = array_merge($this->params, $data);
        }
        
        // Process data, if presented
        if(is_array($this->params) && count($this->params) > 0)
        {
            // Get a blank slate
            $tempString = array();
            
            // Convert data array into a query string (ie animal=dog&sport=baseball)
            foreach ($this->params as $key => $value) 
            {
                if(strlen(trim($value))>0)
                {
                    $tempString[] = $key . "=" . urlencode($value);
                }
            }
            
            $queryString = join('&', $tempString);
        }
        
        // If cURL is not installed, we'll force fscokopen
        $this->useCurl = $this->useCurl && in_array('curl', get_loaded_extensions());
        
        // GET method configuration
        if($this->method == 'GET')
        {
            if(isset($queryString))
            {
                $this->target = $this->target . "?" . $queryString;
            }
        }
        
        // Parse target URL
        $urlParsed = parse_url($this->target);
        
        // Handle SSL connection request
        if ($urlParsed['scheme'] == 'https')
        {
            $this->host = 'ssl://' . $urlParsed['host'];
            $this->port = ($this->port != 0) ? $this->port : 443;
        }
        else
        {
            $this->host = $urlParsed['host'];
            $this->port = ($this->port != 0) ? $this->port : 80;
        }
        
        // Finalize the target path
        $this->path   = (isset($urlParsed['path']) ? $urlParsed['path'] : '/') . (isset($urlParsed['query']) ? '?' . $urlParsed['query'] : '');
        $this->schema = $urlParsed['scheme'];
        
        // Pass the requred cookies
        $this->_passCookies();
        
        // Process cookies, if requested
        if(is_array($this->cookies) && count($this->cookies) > 0)
        {
            // Get a blank slate
            $tempString   = array();
            
            // Convert cookiesa array into a query string (ie animal=dog&sport=baseball)
            foreach ($this->cookies as $key => $value) 
            {
                if(strlen(trim($value)) > 0)
                {
                    $tempString[] = $key . "=" . urlencode($value);
                }
            }
            
            $cookieString = join('&', $tempString);
        }
        
        // Do we need to use cURL
        if ($this->useCurl)
        {
            // Initialize PHP cURL handle
            $ch = curl_init();
    
            // GET method configuration
            if($this->method == 'GET')
            {
                curl_setopt ($ch, CURLOPT_HTTPGET, TRUE); 
                curl_setopt ($ch, CURLOPT_POST, FALSE); 
            }
            // POST method configuration
            else
            {
                if(isset($queryString))
                {
                    curl_setopt ($ch, CURLOPT_POSTFIELDS, $queryString);
                }
                
                curl_setopt ($ch, CURLOPT_POST, TRUE); 
                curl_setopt ($ch, CURLOPT_HTTPGET, FALSE); 
            }
            
            // Basic Authentication configuration
            if ($this->username && $this->password)
            {
                curl_setopt($ch, CURLOPT_USERPWD, $this->username . ':' . $this->password);
            }
            
            // Custom cookie configuration
            if($this->useCookie && isset($cookieString))
            {
                curl_setopt ($ch, CURLOPT_COOKIE, $cookieString);
            }
            
            curl_setopt($ch, CURLOPT_HEADER,         TRUE);                 // No need of headers
            curl_setopt($ch, CURLOPT_NOBODY,         FALSE);                // Return body

            curl_setopt($ch, CURLOPT_HTTPHEADER,     $this->headers);       // Set custom headers
            curl_setopt($ch, CURLOPT_COOKIEJAR,      $this->cookiePath);    // Cookie management.
            curl_setopt($ch, CURLOPT_TIMEOUT,        $this->timeout);       // Timeout
            curl_setopt($ch, CURLOPT_USERAGENT,      $this->userAgent);     // Webbot name
            curl_setopt($ch, CURLOPT_URL,            $this->target);        // Target site
            curl_setopt($ch, CURLOPT_REFERER,        $this->referrer);      // Referer value
            
            curl_setopt($ch, CURLOPT_VERBOSE,        FALSE);                // Minimize logs
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);                // No certificate
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, $this->redirect);      // Follow redirects
            curl_setopt($ch, CURLOPT_MAXREDIRS,      $this->maxRedirect);   // Limit redirections to four
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);                 // Return in string
            
            // Get the target contents
            $content = curl_exec($ch);
            $contentArray = explode("\r\n\r\n", $content);
            
            // Get the request info 
            $status  = curl_getinfo($ch);
            
            // Store the contents
            $this->result = $contentArray[count($contentArray) - 1]; 

            // Parse the headers
            $this->_parseHeaders($contentArray[count($contentArray) - 2]);
                        
            // Store the error (is any)
            $this->_setError(curl_error($ch));
            
            // Close PHP cURL handle
            curl_close($ch);
        }
        else
        {
            // Get a file pointer
            $filePointer = fsockopen($this->host, $this->port, $errorNumber, $errorString, $this->timeout);
       
            // We have an error if pointer is not there
            if (!$filePointer)
            {
                $this->_setError('Failed opening http socket connection: ' . $errorString . ' (' . $errorNumber . ')');
                return FALSE;
            }

            // Set http headers with host, user-agent and content type
            $requestHeader  = $this->method . " " . $this->path . "  HTTP/1.1\r\n";
            $requestHeader .= "Host: " . $urlParsed['host'] . "\r\n";
            $requestHeader .= "User-Agent: " . $this->userAgent . "\r\n";
            $requestHeader .= "Content-Type: application/x-www-form-urlencoded\r\n";
            
            // Specify the custom cookies
            if ($this->useCookie && $cookieString != '')
            {
                $requestHeader.= "Cookie: " . $cookieString . "\r\n";
            }

            // POST method configuration
            if ($this->method == "POST")
            {
                $requestHeader.= "Content-Length: " . strlen($queryString) . "\r\n";
            }
            
            // Specify the referrer
            if ($this->referrer != '')
            {
                $requestHeader.= "Referer: " . $this->referrer . "\r\n";
            }
            
            // Specify http authentication (basic)
            if ($this->username && $this->password)
            {
                $requestHeader.= "Authorization: Basic " . base64_encode($this->username . ':' . $this->password) . "\r\n";
            }
       
            $requestHeader.= "Connection: close\r\n\r\n";
       
            // POST method configuration
            if ($this->method == "POST")
            {
                $requestHeader .= $queryString;
            }           

            // We're ready to launch
            fwrite($filePointer, $requestHeader);
       
            // Clean the slate
            $responseHeader = '';
            $responseContent = '';

            // 3...2...1...Launch !
            do
            {
                $responseHeader .= fread($filePointer, 1);
            }
            while (!preg_match('/\\r\\n\\r\\n$/', $responseHeader));
            
            // Parse the headers
            $this->_parseHeaders($responseHeader);
            
            // Do we have a 301/302 redirect ?
            if (($this->status == '301' || $this->status == '302') && $this->redirect == TRUE)
            {
                if ($this->curRedirect < $this->maxRedirect)
                {
                    // Let's find out the new redirect URL
                    $newUrlParsed = parse_url($this->headers['location']);
                    
                    if ($newUrlParsed['host'])
                    {
                        $newTarget = $this->headers['location'];    
                    }
                    else
                    {
                        $newTarget = $this->schema . '://' . $this->host . '/' . $this->headers['location'];
                    }
                    
                    // Reset some of the properties
                    $this->port   = 0;
                    $this->status = 0;
                    $this->params = array();
                    $this->method = 'GET';
                    $this->referrer = $this->target;
                    
                    // Increase the redirect counter
                    $this->curRedirect++;
                    
                    // Let's go, go, go !
                    $this->result = $this->execute($newTarget);
                }
                else
                {
                    $this->_setError('Too many redirects.');
                    return FALSE;
                }
            }
            else
            {
                // Nope...so lets get the rest of the contents (non-chunked)
                if ($this->headers['transfer-encoding'] != 'chunked')
                {
                    while (!feof($filePointer))
                    {
                        $responseContent .= fgets($filePointer, 128);
                    }
                }
                else
                {
                    // Get the contents (chunked)
                    while ($chunkLength = hexdec(fgets($filePointer)))
                    {
                        $responseContentChunk = '';
                        $readLength = 0;
                       
                        while ($readLength < $chunkLength)
                        {
                            $responseContentChunk .= fread($filePointer, $chunkLength - $readLength);
                            $readLength = strlen($responseContentChunk);
                        }

                        $responseContent .= $responseContentChunk;
                        fgets($filePointer);  
                    }
                }
                
                // Store the target contents
                $this->result = chop($responseContent);
            }
        }
        
        // There it is! We have it!! Return to base !!!
        return $this->result;
    }
    
    /**
     * Parse Headers (internal)
     * 
     * Parse the response headers and store them for finding the resposne 
     * status, redirection location, cookies, etc. 
     *
     * @param string Raw header response
     * @return void
     * @access private
     */
    function _parseHeaders($responseHeader)
    {
        // Break up the headers
        $headers = explode("\r\n", $responseHeader);
        
        // Clear the header array
        $this->_clearHeaders();
        
        // Get resposne status
        if($this->status == 0)
        {
            // Oooops !
            if(!preg_match_all("|^http/[0-9]+\\.[0-9]+[ \t]+([0-9]+)[ \t]*(.*)\$|i", $headers[0], $matches))
            {
                $this->_setError('Unexpected HTTP response status');
                return FALSE;
            }
            
            // Gotcha!
            $this->status = $matches[1];
            array_shift($headers);
        }
        
        // Prepare all the other headers
        foreach ($headers as $header)
        {
            // Get name and value
            $headerName  = strtolower($this->_tokenize($header, ':'));
            $headerValue = trim(chop($this->_tokenize("\r\n")));
            
            // If its already there, then add as an array. Otherwise, just keep there
            if(isset($this->headers[$headerName]))
            {
                if(gettype($this->headers[$headerName]) == "string")
                {
                    $this->headers[$headerName] = array($this->headers[$headerName]);
                }
                    
                $this->headers[$headerName][] = $headerValue;
            }
            else
            {
                $this->headers[$headerName] = $headerValue;
            }
        }
            
        // Save cookies if asked 
        if ($this->saveCookie && isset($this->headers['set-cookie']))
        {
            $this->_parseCookie();
        }
    }
    
    /**
     * Clear the headers array (internal)
     *
     * @return void
     * @access private
     */
    function _clearHeaders()
    {
        $this->headers = array();
    }
    
    /**
     * Parse Cookies (internal)
     * 
     * Parse the set-cookie headers from response and add them for inclusion.
     *
     * @return void
     * @access private
     */
    function _parseCookie()
    {
        // Get the cookie header as array
        if(gettype($this->headers['set-cookie']) == "array")
        {
            $cookieHeaders = $this->headers['set-cookie'];
        }
        else
        {
            $cookieHeaders = array($this->headers['set-cookie']);
        }

        // Loop through the cookies
        for ($cookie = 0; $cookie < count($cookieHeaders); $cookie++)
        {
            $cookieName  = trim($this->_tokenize($cookieHeaders[$cookie], "="));
            $cookieValue = $this->_tokenize(";");
            
            $urlParsed   = parse_url($this->target);
            
            $domain      = $urlParsed['host'];
            $secure      = '0';
            
            $path        = "/";
            $expires     = "";
            
            while(($name = trim(urldecode($this->_tokenize("=")))) != "")
            {
                $value = urldecode($this->_tokenize(";"));
                
                switch($name)
                {
                    case "path"     : $path     = $value; break;
                    case "domain"   : $domain   = $value; break;
                    case "secure"   : $secure   = ($value != '') ? '1' : '0'; break;
                }
            }
            
            $this->_setCookie($cookieName, $cookieValue, $expires, $path , $domain, $secure);
        }
    }
    
    /**
     * Set cookie (internal)
     * 
     * Populate the internal _cookies array for future inclusion in 
     * subsequent requests. This actually validates and then populates 
     * the object properties with a dimensional entry for cookie.
     *
     * @param string Cookie name
     * @param string Cookie value
     * @param string Cookie expire date
     * @param string Cookie path
     * @param string Cookie domain
     * @param string Cookie security (0 = non-secure, 1 = secure)
     * @return void
     * @access private
     */
    function _setCookie($name, $value, $expires = "" , $path = "/" , $domain = "" , $secure = 0)
    {
        if(strlen($name) == 0)
        {
            return($this->_setError("No valid cookie name was specified."));
        }

        if(strlen($path) == 0 || strcmp($path[0], "/"))
        {
            return($this->_setError("$path is not a valid path for setting cookie $name."));
        }
            
        if($domain == "" || !strpos($domain, ".", $domain[0] == "." ? 1 : 0))
        {
            return($this->_setError("$domain is not a valid domain for setting cookie $name."));
        }
        
        $domain = strtolower($domain);
        
        if(!strcmp($domain[0], "."))
        {
            $domain = substr($domain, 1);
        }
            
        $name  = $this->_encodeCookie($name, true);
        $value = $this->_encodeCookie($value, false);
        
        $secure = intval($secure);
        
        $this->_cookies[] = array( "name"      =>  $name,
                                   "value"     =>  $value,
                                   "domain"    =>  $domain,
                                   "path"      =>  $path,
                                   "expires"   =>  $expires,
                                   "secure"    =>  $secure
                                 );
    }
    
    /**
     * Encode cookie name/value (internal)
     *
     * @param string Value of cookie to encode
     * @param string Name of cookie to encode
     * @return string encoded string
     * @access private
     */
    function _encodeCookie($value, $name)
    {
        return($name ? str_replace("=", "%25", $value) : str_replace(";", "%3B", $value));
    }
    
    /**
     * Pass Cookies (internal)
     * 
     * Get the cookies which are valid for the current request. Checks 
     * domain and path to decide the return.
     *
     * @return void
     * @access private
     */
    function _passCookies()
    {
        if (is_array($this->_cookies) && count($this->_cookies) > 0)
        {
            $urlParsed = parse_url($this->target);
            $tempCookies = array();
            
            foreach($this->_cookies as $cookie)
            {
                if ($this->_domainMatch($urlParsed['host'], $cookie['domain']) && (0 === strpos($urlParsed['path'], $cookie['path']))
                    && (empty($cookie['secure']) || $urlParsed['protocol'] == 'https')) 
                {
                    $tempCookies[$cookie['name']][strlen($cookie['path'])] = $cookie['value'];
                }
            }
            
            // cookies with longer paths go first
            foreach ($tempCookies as $name => $values) 
            {
                krsort($values);
                foreach ($values as $value) 
                {
                    $this->addCookie($name, $value);
                }
            }
        }
    }
    
    /**
    * Checks if cookie domain matches a request host (internal)
    * 
    * Cookie domain can begin with a dot, it also must contain at least
    * two dots.
    * 
    * @param string Request host
    * @param string Cookie domain
    * @return bool Match success
     * @access private
    */
    function _domainMatch($requestHost, $cookieDomain)
    {
        if ('.' != $cookieDomain{0}) 
        {
            return $requestHost == $cookieDomain;
        } 
        elseif (substr_count($cookieDomain, '.') < 2) 
        {
            return false;
        } 
        else 
        {
            return substr('.'. $requestHost, - strlen($cookieDomain)) == $cookieDomain;
        }
    }
    
    /**
     * Tokenize String (internal)
     * 
     * Tokenize string for various internal usage. Omit the second parameter 
     * to tokenize the previous string that was provided in the prior call to 
     * the function.
     *
     * @param string The string to tokenize
     * @param string The seperator to use
     * @return string Tokenized string
     * @access private
     */
    function _tokenize($string, $separator = '')
    {
        if(!strcmp($separator, ''))
        {
            $separator = $string;
            $string = $this->nextToken;
        }
        
        for($character = 0; $character < strlen($separator); $character++)
        {
            if(gettype($position = strpos($string, $separator[$character])) == "integer")
            {
                $found = (isset($found) ? min($found, $position) : $position);
            }
        }
        
        if(isset($found))
        {
            $this->nextToken = substr($string, $found + 1);
            return(substr($string, 0, $found));
        }
        else
        {
            $this->nextToken = '';
            return($string);
        }
    }
    
    /**
     * Set error message (internal)
     *
     * @param string Error message
     * @return string Error message
     * @access private
     */
    function _setError($error)
    {
        if ($error != '')
        {
            $this->error = $error;
            return $error;
        }
    }
}

?>
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[share] Bikin Web Service Di Codeigniter Sebagai Komputer Server

Bismillah…

Okeh, sembari ngabuburit menunggu magrib kita buat sebuah aplikasi sederhana kenapa sederhana karena di internet buanyak contohnya, ini cuman sekedar pengingat gw sendiri aja kali kali kalo butuh, suatu saat gw tahu harus kemana hahay.

Kalo pada bingung itu apaan sih, REST … gambarannya yang gw pahamin, gw punya data gw pengen kasih ke yang lain tanpa harus akses ke database gw semua, cukup gw kasih paramater fungsi atau metod tertentu silahkan manfaatkan data yang gw kasih, terkait security keamanannya bisa di setting, intinya lu mu data gw ya ngapain lewat akses (user dan password) cukup lewat aplikasi REST aja, atau orang biasa sebut dengan API. Okeh, langsung ya…

Senjata yang perlu kita siapkan:

  1. Codeigniter Versi 2.x
  2. Library RESTServer
  3. MY_Model
  4. Struktur Tabel Propinsi

Langkah 1:

silahkan extract CI nyah … sebagai catatan gw pake versi 2.x dan rest versi 2.6 … kalo berhasil muncul halaman kayak gini:

rest-server-1Kalo ada yang butuh format .htaccess untuk menghilangkan index.php ini dia format .htaccess ini donglot ajah ..

Note: RESTServer sekarang support CI versi 3, gw masih di versi 2 soalnya ada bbrp library di aplikasi yang udah running blm ada update nunggu dulu, jadi sekarang gw pake yang  support versi 2 dulu .. haha

Langkah 2:

Extract MY_Model ke core kayak gambar dibawah ini:

rest-server-2

Langkah 3:

Extract REST Server nya ke aplikasi yang udah kita siapkan disitu gw kasih nama (simservice), ada 3 file utama rest.php, Format.php dan REST_Controller.php, kayak gambar dibawah ini:

rest-server-3

Langkah 4:

Buat modif controller welcome, dengan perubahan code kayak gini:

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); require APPPATH.'/libraries/REST_Controller.php'; function __construct() { parent::__construct(); $this->load->model('propinsimodel');
	}

class Welcome extends REST_Controller {

}

Kalo muncul kayak gini:

rest-server-4
Berarti berhasil, library gak ada yang conflict… lanjut ke langkah selanjutnya.

Langkah 5:

Kita test dengan variable static …

	public function index_get()
	{
		$words = array('Hello', 'Topidesta.wordpress.com', 'Technical Tutorial');
		$this->response($words, 200); // 200 being the HTTP response code
		// $this->load->view('welcome_message');
	}

_get() itu otomatis terdetek oleh library REST kalo itu perintah ambil data dengan _get(), dan 200 itu code international untuk respone HTTP berhasil terus Kalo output keluar kayak gini berhasil berarti:

rest-server-5

Langkah 6:

Sekarang kita test dengan data dari database okeh, buat dulu model, namanya propinsimodel.php, sebelumnya ubah dulu config database nya ya, sama autoload dulu database, terus isi dari propinsimodel.php kayak gini:

<?php defined('BASEPATH') OR exit('No direct script access allowed');

class PropinsiModel extends MY_Model {

	protected $_table = 'master_provinsi';
	protected $primary_key = 'provinsi_id';
	
}

sekarang kembali ke controller welcome.php, buat fungsi baru, misalkan propinsi_all_get(), dan isinya kayak gini kurang lebih:

		$data = $this->PropinsiModel->get_all();

		if($data) {
			// ada data munculin
			$this->response($data, 200); // 200 being the HTTP response code
		} else {
			// gak ada data
			$this->response(array('error' => 'Propinsi Tidak ada'), 404);
		}

Kalo berhasil muncul gambar kayak gini:
rest-server-6
Langkah 7:

Terus saya mau ambil berdasarkan id tertentu… pasti bisa… tenang… ini source nyah:

		// kita set dulu, id nyah
		$propinsi_id = $this->get('id');

		// cek ya id terset apa belum
		if(!$propinsi_id) {
			// respone zonkkk, tidak terset
			$this->response(array('error' => 'Id Tidak ada'), 404);
		}else{
			// kalo ada respon data
			$data = $this->PropinsiModel->get($propinsi_id);
			if($data) {
				$this->response($data, 200);
				// 200 being the HTTP response code
			} else {
				$this->response(array('error' => 'Propinsi tidak ada'), 404);
			}
		}

dan kalo muncul kayak gini berarti berhasil:

rest-server-7

Langkah 8 (bonus):

Kita juga bisa test dengan addons dari chrome… pake POSTman.. silahkan explorer sendiri ajalah yah… kayak gini sih:

rest-server-8

 

 

SELESAI!

Lah, delete, update, keamanannya, bisa ngelist ip mana aja yang bisa akses, mana, mana mana? tenang … itu lanjut ke catetan selanjutnya … biar sekalian, kali ini kita setting dari sisi server (alias yang tau user dan password database) nah,  mu pulang ngantor dulu ini..

ini fullsourcecode nyah: http://lb.cm/rest-server

 

Okay sekian…

Have a nice Day!