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• 

  Apskatīt (16 komentāri) mad pirms 9 gadiem teica:

  Kāds no šejieniešiem ir https://www.fiverr.com/ pircis copywriting/proofreading pakalpojumus? Kādas atsauksmes?
• 

  Apskatīt (3 komentāri) Dawgora pirms 9 gadiem teica:

  Es vēlējos jautāt- vai tas būtu "Labā prakse" likt kaut kādus mazos datus (galvenā bilde vai bildes... vai video, fona krāsa titula bildei, ja vēlies ik pēc laika rediģēt to un ja Tavs administrators ne sūda nezin par CSS, Vienreizējs teksts, ko vajadzētu rediģēt pēc vajadzības, un kurš ne vienmēr tiktu izmantots un rādīts and so on) saglabāt datubāzē, kur ir kolonas, piemēram kā "Variable" un "Data"? vai arī čakarēties citā veidā? At the moment I got no other ideas.
• 

  Apskatīt (5 komentāri) NoTitsNoFun pirms 9 gadiem teica:

  ITT: Portāli, twitter profili, cilvēki, mājaslapas kam sekojiet ikdienas gaitās jebkādā saistībā ar IT.
• 

  Apskatīt (9 komentāri) Dawgora pirms 9 gadiem teica:

  Kāds nezin, kur var noskrāpēt vai dabūt XML/JSON datus par šobrīdējo temperatūru un laikapstākļiem? Pats īsti nezinu kur dabūt, bet būtu diezgan noderīgi.
  skatījos un cerēju, ka varbūt ir pie http://apis.lv/ , bet nav.
• 

  Apskatīt (7 komentāri) mad pirms 9 gadiem teica:

  Internets šodien darbā... emm... jā.
  
• 

  Apskatīt (8 komentāri) Dawgora pirms 9 gadiem teica:

  Kā domājat, vai tas ir iespējams izveidot programmu uz windows, kas tiek iedarbināta on start up, kura aizsūta uz serveri savu IP adresi un datus par datoru, un iet fonā, bet neuzrādās uz rīkujoslas, bet parādās iekš control panel? Domāju kaut ko ierīkot darbā, tikai nezinu, vai sanāks. Vajag IP adreses datoriem iegūt, un viņas ir dinamiskas.
• 

  Apskatīt (2 komentāri) Janzz_ pirms 9 gadiem teica:

  IPB uzliku jaunu domēnu , conf_global un admin panelī visus domains nomainīju, bet vairs nevar nomainīt avataru, rāda,ka nav iespējams, bet kad uzliek upload url uz veco viss iet. Kas tur varētu būt? Viss path utt norādīts pareizi
• 

  Apskatīt (0 komentāri) Dawgora pirms 9 gadiem teica:

  Sveiki šovakar. Man ir mazs jautājums- kuri bija labākie plugini priekš vim jūsuprāt? NERDtree jau ir, bija vēl dažas lietas tikai aizmirsu kuras.
• 

  Apskatīt (15 komentāri) Dawgora pirms 9 gadiem teica:

  Cik cilvēki ir saskārušies ar tā saukto kriptovīrusu, ko tagad reklamē? Es jau esmu paspējis redzēt 5 inficētus datorus darbā. Lieku ziņojumu vai nē, rakstu epastu vai nē lai netaisai nepazīstamas saites vai vēstules vaļā, bet ir kāds prātvēdars, kas to izdara.
• 

  Apskatīt (19 komentāri) Dawgora pirms 9 gadiem teica:

  Sveiki, man jautājums- Nevarat ieteikt 3 Latviešu firmas, kur varētu pasūtīt rasberry pi B+ ? Man viņu vajag darbam, bet lieta tāda, ka bez kaut kāda konkursa viņu neiegūt. Valsts iestāde.
• 

  Apskatīt (8 komentāri) Kambyz pirms 9 gadiem teica:

  Psc, un kur bija tā akcija, kad pirku macbooku?
  
  "Šis ir īstais brīdis MacBook Pro 13.3" iegādei. Pērc MacBook Pro 13.3" Retina ar 128GB vai 256GB atmiņu un saņem dāvanā Beats Solo2 austiņas 199€ vērtībā!"
• 

  Apskatīt (23 komentāri) Skkar. pirms 9 gadiem teica:

  Gribu iemācīties kodēt,programmēt nu vismaz pamēģināt. Izstāstiet iespējami sīki kas un kā un ar ko man sākt.
• 

  Apskatīt (7 komentāri) mad pirms 9 gadiem teica:

  Esmu radijis monstru
  
  
• 

  Apskatīt (2 komentāri) Dawgora pirms 9 gadiem teica:

  Kā domājat- ar rasberry pi B+ varētu izveidot mazu PC, kas rāda TV vienu mājaslapu vienmēr? Piemēram... Man skolā/darbā ir ekrāns, kur rāda kāds ir laiks, kam vārda dienas, kuri nav skolā skolotāji, u.t.t. . Cik zinu, TV ir hdmi ports, so... Vai pavilks un baiiiigi nelagos kaut ko tādu?
• 

  Apskatīt (1 komentāri) Dawgora pirms 9 gadiem teica:

  http://map.ipviking.com
  Ja nu kādam interesē. Fun stuff to watch. Draugs parādīja.
• 

  Apskatīt (27 komentāri) Nacho pirms 9 gadiem teica:

  Iesakiet linuxu lai var pie reizes cs go spēlēt, pieriebās windows ar savu geniuni +programmēt foršāk, ērtāk uz linuxa. PC: I3 4130, NVidia 650TI 1gb gddr5, 8gb rams. Tas tā pamatam.
• 

  Apskatīt (38 komentāri) Fukzzs pirms 9 gadiem teica:

  Vajag palīdzību.
  Vēlos ietwītot no savas lapas.
  Uz veco serveri viss strādāja.
  Tagad nekas nenotiek.
  
  index.php
  
<?php

// Include twitteroauth
include('twitteroauth.php');
// Set keys
$consumerKey = '....';
$consumerSecret = '...';
$accessToken = '...';
$accessTokenSecret = '....';

// Create object
$tweet = new TwitterOAuth($consumerKey, $consumerSecret, $accessToken, $accessTokenSecret);

// Set status message
$tweetMessage = ''Mana ziņa'';

// Check for 140 characters
if(strlen($tweetMessage) <= 140)
{
   // Post the status message
   $tweet->post('statuses/update', array('status' => $tweetMessage));
}
?>

  twitteroauth.php
  Rādīt spoileri
  
<?php

/*
* Abraham Williams (abraham@abrah.am) http://abrah.am
*
* The first PHP Library to support OAuth for Twitter's REST API.
*/

/* Load OAuth lib. You can find it at http://oauth.net */
require_once('OAuth.php');

/**
* Twitter OAuth class
*/
class TwitterOAuth {
 /* Contains the last HTTP status code returned. */
 public $http_code;
 /* Contains the last API call. */
 public $url;
 /* Set up the API root URL. */
 public $host = "https://api.twitter.com/1.1/";
 /* Set timeout default. */
 public $timeout = 30;
 /* Set connect timeout. */
 public $connecttimeout = 30;
 /* Verify SSL Cert. */
 public $ssl_verifypeer = TRUE;
 /* Respons format. */
 public $format = 'json';
 /* Decode returned json data. */
 public $decode_json = TRUE;
 /* Contains the last HTTP headers returned. */
 public $http_info;
 /* Set the useragnet. */
 public $useragent = 'TwitterOAuth v0.2.0-beta2';
 /* Immediately retry the API call if the response was not successful. */





 /**
  * Set API URLS
  */
 function accessTokenURL()  { return 'https://api.twitter.com/oauth/access_token'; }
 function authenticateURL() { return 'https://twitter.com/oauth/authenticate'; }
 function authorizeURL()    { return 'https://twitter.com/oauth/authorize'; }
 function requestTokenURL() { return 'https://api.twitter.com/oauth/request_token'; }

 /**
  * Debug helpers
  */
 function lastStatusCode() { return $this->http_status; }
 function lastAPICall() { return $this->last_api_call; }

 /**
  * construct TwitterOAuth object
  */
 function __construct($consumer_key, $consumer_secret, $oauth_token = NULL, $oauth_token_secret = NULL) {
   $this->sha1_method = new OAuthSignatureMethod_HMAC_SHA1();
   $this->consumer = new OAuthConsumer($consumer_key, $consumer_secret);
   if (!empty($oauth_token) && !empty($oauth_token_secret)) {
     $this->token = new OAuthConsumer($oauth_token, $oauth_token_secret);
   } else {
     $this->token = NULL;
   }
 }


 /**
  * Get a request_token from Twitter
  *
  * @returns a key/value array containing oauth_token and oauth_token_secret
  */
 function getRequestToken($oauth_callback = NULL) {
   $parameters = array();
   if (!empty($oauth_callback)) {
     $parameters['oauth_callback'] = $oauth_callback;
   }
   $request = $this->oAuthRequest($this->requestTokenURL(), 'GET', $parameters);
   $token = OAuthUtil::parse_parameters($request);
   $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
   return $token;
 }

 /**
  * Get the authorize URL
  *
  * @returns a string
  */
 function getAuthorizeURL($token, $sign_in_with_twitter = TRUE) {
   if (is_array($token)) {
     $token = $token['oauth_token'];
   }
   if (empty($sign_in_with_twitter)) {
     return $this->authorizeURL() . "?oauth_token={$token}";
   } else {
      return $this->authenticateURL() . "?oauth_token={$token}";
   }
 }

 /**
  * Exchange request token and secret for an access token and
  * secret, to sign API calls.
  *
  * @returns array("oauth_token" => "the-access-token",
  *                "oauth_token_secret" => "the-access-secret",
  *                "user_id" => "9436992",
  *                "screen_name" => "abraham")
  */
 function getAccessToken($oauth_verifier = FALSE) {
   $parameters = array();
   if (!empty($oauth_verifier)) {
     $parameters['oauth_verifier'] = $oauth_verifier;
   }
   $request = $this->oAuthRequest($this->accessTokenURL(), 'GET', $parameters);
   $token = OAuthUtil::parse_parameters($request);
   $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
   return $token;
 }

 /**
  * One time exchange of username and password for access token and secret.
  *
  * @returns array("oauth_token" => "the-access-token",
  *                "oauth_token_secret" => "the-access-secret",
  *                "user_id" => "9436992",
  *                "screen_name" => "abraham",
  *                "x_auth_expires" => "0")
  */  
 function getXAuthToken($username, $password) {
   $parameters = array();
   $parameters['x_auth_username'] = $username;
   $parameters['x_auth_password'] = $password;
   $parameters['x_auth_mode'] = 'client_auth';
   $request = $this->oAuthRequest($this->accessTokenURL(), 'POST', $parameters);
   $token = OAuthUtil::parse_parameters($request);
   $this->token = new OAuthConsumer($token['oauth_token'], $token['oauth_token_secret']);
   return $token;
 }

 /**
  * GET wrapper for oAuthRequest.
  */
 function get($url, $parameters = array()) {
   $response = $this->oAuthRequest($url, 'GET', $parameters);
   if ($this->format === 'json' && $this->decode_json) {
     return json_decode($response);
   }
   return $response;
 }
 
 /**
  * POST wrapper for oAuthRequest.
  */
 function post($url, $parameters = array()) {
   $response = $this->oAuthRequest($url, 'POST', $parameters);
   if ($this->format === 'json' && $this->decode_json) {
     return json_decode($response);
   }
   return $response;
 }

 /**
  * DELETE wrapper for oAuthReqeust.
  */
 function delete($url, $parameters = array()) {
   $response = $this->oAuthRequest($url, 'DELETE', $parameters);
   if ($this->format === 'json' && $this->decode_json) {
     return json_decode($response);
   }
   return $response;
 }

 /**
  * Format and sign an OAuth / API request
  */
 function oAuthRequest($url, $method, $parameters) {
   if (strrpos($url, 'https://') !== 0 && strrpos($url, 'http://') !== 0) {
     $url = "{$this->host}{$url}.{$this->format}";
   }
   $request = OAuthRequest::from_consumer_and_token($this->consumer, $this->token, $method, $url, $parameters);
   $request->sign_request($this->sha1_method, $this->consumer, $this->token);
   switch ($method) {
   case 'GET':
     return $this->http($request->to_url(), 'GET');
   default:
     return $this->http($request->get_normalized_http_url(), $method, $request->to_postdata());
   }
 }

 /**
  * Make an HTTP request
  *
  * @return API results
  */
 function http($url, $method, $postfields = NULL) {
   $this->http_info = array();
   $ci = curl_init();
   /* Curl settings */
   curl_setopt($ci, CURLOPT_USERAGENT, $this->useragent);
   curl_setopt($ci, CURLOPT_CONNECTTIMEOUT, $this->connecttimeout);
   curl_setopt($ci, CURLOPT_TIMEOUT, $this->timeout);
   curl_setopt($ci, CURLOPT_RETURNTRANSFER, TRUE);
   curl_setopt($ci, CURLOPT_HTTPHEADER, array('Expect:'));
   curl_setopt($ci, CURLOPT_SSL_VERIFYPEER, $this->ssl_verifypeer);
   curl_setopt($ci, CURLOPT_HEADERFUNCTION, array($this, 'getHeader'));
   curl_setopt($ci, CURLOPT_HEADER, FALSE);

   switch ($method) {
     case 'POST':
       curl_setopt($ci, CURLOPT_POST, TRUE);
       if (!empty($postfields)) {
         curl_setopt($ci, CURLOPT_POSTFIELDS, $postfields);
       }
       break;
     case 'DELETE':
       curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'DELETE');
       if (!empty($postfields)) {
         $url = "{$url}?{$postfields}";
       }
   }

   curl_setopt($ci, CURLOPT_URL, $url);
   $response = curl_exec($ci);
   $this->http_code = curl_getinfo($ci, CURLINFO_HTTP_CODE);
   $this->http_info = array_merge($this->http_info, curl_getinfo($ci));
   $this->url = $url;
   curl_close ($ci);
   return $response;
 }

 /**
  * Get the header info to store.
  */
 function getHeader($ch, $header) {
   $i = strpos($header, ':');
   if (!empty($i)) {
     $key = str_replace('-', '_', strtolower(substr($header, 0, $i)));
     $value = trim(substr($header, $i + 2));
     $this->http_header[$key] = $value;
   }
   return strlen($header);
 }
}

  
  
  OAuth.php
  
  Rādīt spoileri
  
<?php
// vim: foldmethod=marker

/* Generic exception class
*/
class OAuthException extends Exception {
 // pass
}

class OAuthConsumer {
 public $key;
 public $secret;

 function __construct($key, $secret, $callback_url=NULL) {
   $this->key = $key;
   $this->secret = $secret;
   $this->callback_url = $callback_url;
 }

 function __toString() {
   return "OAuthConsumer[key=$this->key,secret=$this->secret]";
 }
}

class OAuthToken {
 // access tokens and request tokens
 public $key;
 public $secret;

 /**
  * key = the token
  * secret = the token secret
  */
 function __construct($key, $secret) {
   $this->key = $key;
   $this->secret = $secret;
 }

 /**
  * generates the basic string serialization of a token that a server
  * would respond to request_token and access_token calls with
  */
 function to_string() {
   return "oauth_token=" .
          OAuthUtil::urlencode_rfc3986($this->key) .
          "&oauth_token_secret=" .
          OAuthUtil::urlencode_rfc3986($this->secret);
 }

 function __toString() {
   return $this->to_string();
 }
}

/**
* A class for implementing a Signature Method
* See section 9 ("Signing Requests") in the spec
*/
abstract class OAuthSignatureMethod {
 /**
  * Needs to return the name of the Signature Method (ie HMAC-SHA1)
  * @return string
  */
 abstract public function get_name();

 /**
  * Build up the signature
  * NOTE: The output of this function MUST NOT be urlencoded.
  * the encoding is handled in OAuthRequest when the final
  * request is serialized
  * @param OAuthRequest $request
  * @param OAuthConsumer $consumer
  * @param OAuthToken $token
  * @return string
  */
 abstract public function build_signature($request, $consumer, $token);

 /**
  * Verifies that a given signature is correct
  * @param OAuthRequest $request
  * @param OAuthConsumer $consumer
  * @param OAuthToken $token
  * @param string $signature
  * @return bool
  */
 public function check_signature($request, $consumer, $token, $signature) {
   $built = $this->build_signature($request, $consumer, $token);
   return $built == $signature;
 }
}

/**
* The HMAC-SHA1 signature method uses the HMAC-SHA1 signature algorithm as defined in [RFC2104]
* where the Signature Base String is the text and the key is the concatenated values (each first
* encoded per Parameter Encoding) of the Consumer Secret and Token Secret, separated by an '&'
* character (ASCII code 38) even if empty.
*   - Chapter 9.2 ("HMAC-SHA1")
*/
class OAuthSignatureMethod_HMAC_SHA1 extends OAuthSignatureMethod {
 function get_name() {
   return "HMAC-SHA1";
 }

 public function build_signature($request, $consumer, $token) {
   $base_string = $request->get_signature_base_string();
   $request->base_string = $base_string;

   $key_parts = array(
     $consumer->secret,
     ($token) ? $token->secret : ""
   );

   $key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
   $key = implode('&', $key_parts);

   return base64_encode(hash_hmac('sha1', $base_string, $key, true));
 }
}

/**
* The PLAINTEXT method does not provide any security protection and SHOULD only be used
* over a secure channel such as HTTPS. It does not use the Signature Base String.
*   - Chapter 9.4 ("PLAINTEXT")
*/
class OAuthSignatureMethod_PLAINTEXT extends OAuthSignatureMethod {
 public function get_name() {
   return "PLAINTEXT";
 }

 /**
  * oauth_signature is set to the concatenated encoded values of the Consumer Secret and
  * Token Secret, separated by a '&' character (ASCII code 38), even if either secret is
  * empty. The result MUST be encoded again.
  *   - Chapter 9.4.1 ("Generating Signatures")
  *
  * Please note that the second encoding MUST NOT happen in the SignatureMethod, as
  * OAuthRequest handles this!
  */
 public function build_signature($request, $consumer, $token) {
   $key_parts = array(
     $consumer->secret,
     ($token) ? $token->secret : ""
   );

   $key_parts = OAuthUtil::urlencode_rfc3986($key_parts);
   $key = implode('&', $key_parts);
   $request->base_string = $key;

   return $key;
 }
}

/**
* The RSA-SHA1 signature method uses the RSASSA-PKCS1-v1_5 signature algorithm as defined in
* [RFC3447] section 8.2 (more simply known as PKCS#1), using SHA-1 as the hash function for
* EMSA-PKCS1-v1_5. It is assumed that the Consumer has provided its RSA public key in a
* verified way to the Service Provider, in a manner which is beyond the scope of this
* specification.
*   - Chapter 9.3 ("RSA-SHA1")
*/
abstract class OAuthSignatureMethod_RSA_SHA1 extends OAuthSignatureMethod {
 public function get_name() {
   return "RSA-SHA1";
 }

 // Up to the SP to implement this lookup of keys. Possible ideas are:
 // (1) do a lookup in a table of trusted certs keyed off of consumer
 // (2) fetch via http using a url provided by the requester
 // (3) some sort of specific discovery code based on request
 //
 // Either way should return a string representation of the certificate
 protected abstract function fetch_public_cert(&$request);

 // Up to the SP to implement this lookup of keys. Possible ideas are:
 // (1) do a lookup in a table of trusted certs keyed off of consumer
 //
 // Either way should return a string representation of the certificate
 protected abstract function fetch_private_cert(&$request);

 public function build_signature($request, $consumer, $token) {
   $base_string = $request->get_signature_base_string();
   $request->base_string = $base_string;

   // Fetch the private key cert based on the request
   $cert = $this->fetch_private_cert($request);

   // Pull the private key ID from the certificate
   $privatekeyid = openssl_get_privatekey($cert);

   // Sign using the key
   $ok = openssl_sign($base_string, $signature, $privatekeyid);

   // Release the key resource
   openssl_free_key($privatekeyid);

   return base64_encode($signature);
 }

 public function check_signature($request, $consumer, $token, $signature) {
   $decoded_sig = base64_decode($signature);

   $base_string = $request->get_signature_base_string();

   // Fetch the public key cert based on the request
   $cert = $this->fetch_public_cert($request);

   // Pull the public key ID from the certificate
   $publickeyid = openssl_get_publickey($cert);

   // Check the computed signature against the one passed in the query
   $ok = openssl_verify($base_string, $decoded_sig, $publickeyid);

   // Release the key resource
   openssl_free_key($publickeyid);

   return $ok == 1;
 }
}

class OAuthRequest {
 private $parameters;
 private $http_method;
 private $http_url;
 // for debug purposes
 public $base_string;
 public static $version = '1.0';
 public static $POST_INPUT = 'php://input';

 function __construct($http_method, $http_url, $parameters=NULL) {
   @$parameters or $parameters = array();
   $parameters = array_merge( OAuthUtil::parse_parameters(parse_url($http_url, PHP_URL_QUERY)), $parameters);
   $this->parameters = $parameters;
   $this->http_method = $http_method;
   $this->http_url = $http_url;
 }


 /**
  * attempt to build up a request from what was passed to the server
  */
 public static function from_request($http_method=NULL, $http_url=NULL, $parameters=NULL) {
   $scheme = (!isset($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on")
             ? 'http'
             : 'https';
   @$http_url or $http_url = $scheme .
                             '://' . $_SERVER['HTTP_HOST'] .
                             ':' .
                             $_SERVER['SERVER_PORT'] .
                             $_SERVER['REQUEST_URI'];
   @$http_method or $http_method = $_SERVER['REQUEST_METHOD'];

   // We weren't handed any parameters, so let's find the ones relevant to
   // this request.
   // If you run XML-RPC or similar you should use this to provide your own
   // parsed parameter-list
   if (!$parameters) {
     // Find request headers
     $request_headers = OAuthUtil::get_headers();

     // Parse the query-string to find GET parameters
     $parameters = OAuthUtil::parse_parameters($_SERVER['QUERY_STRING']);

     // It's a POST request of the proper content-type, so parse POST
     // parameters and add those overriding any duplicates from GET
     if ($http_method == "POST"
         && @strstr($request_headers["Content-Type"],
                    "application/x-www-form-urlencoded")
         ) {
       $post_data = OAuthUtil::parse_parameters(
         file_get_contents(self::$POST_INPUT)
       );
       $parameters = array_merge($parameters, $post_data);
     }

     // We have a Authorization-header with OAuth data. Parse the header
     // and add those overriding any duplicates from GET or POST
     if (@substr($request_headers['Authorization'], 0, 6) == "OAuth ") {
       $header_parameters = OAuthUtil::split_header(
         $request_headers['Authorization']
       );
       $parameters = array_merge($parameters, $header_parameters);
     }

   }

   return new OAuthRequest($http_method, $http_url, $parameters);
 }

 /**
  * pretty much a helper function to set up the request
  */
 public static function from_consumer_and_token($consumer, $token, $http_method, $http_url, $parameters=NULL) {
   @$parameters or $parameters = array();
   $defaults = array("oauth_version" => OAuthRequest::$version,
                     "oauth_nonce" => OAuthRequest::generate_nonce(),
                     "oauth_timestamp" => OAuthRequest::generate_timestamp(),
                     "oauth_consumer_key" => $consumer->key);
   if ($token)
     $defaults['oauth_token'] = $token->key;

   $parameters = array_merge($defaults, $parameters);

   return new OAuthRequest($http_method, $http_url, $parameters);
 }

 public function set_parameter($name, $value, $allow_duplicates = true) {
   if ($allow_duplicates && isset($this->parameters[$name])) {
     // We have already added parameter(s) with this name, so add to the list
     if (is_scalar($this->parameters[$name])) {
       // This is the first duplicate, so transform scalar (string)
       // into an array so we can add the duplicates
       $this->parameters[$name] = array($this->parameters[$name]);
     }

     $this->parameters[$name][] = $value;
   } else {
     $this->parameters[$name] = $value;
   }
 }

 public function get_parameter($name) {
   return isset($this->parameters[$name]) ? $this->parameters[$name] : null;
 }

 public function get_parameters() {
   return $this->parameters;
 }

 public function unset_parameter($name) {
   unset($this->parameters[$name]);
 }

 /**
  * The request parameters, sorted and concatenated into a normalized string.
  * @return string
  */
 public function get_signable_parameters() {
   // Grab all parameters
   $params = $this->parameters;

   // Remove oauth_signature if present
   // Ref: Spec: 9.1.1 ("The oauth_signature parameter MUST be excluded.")
   if (isset($params['oauth_signature'])) {
     unset($params['oauth_signature']);
   }

   return OAuthUtil::build_http_query($params);
 }

 /**
  * Returns the base string of this request
  *
  * The base string defined as the method, the url
  * and the parameters (normalized), each urlencoded
  * and the concated with &.
  */
 public function get_signature_base_string() {
   $parts = array(
     $this->get_normalized_http_method(),
     $this->get_normalized_http_url(),
     $this->get_signable_parameters()
   );

   $parts = OAuthUtil::urlencode_rfc3986($parts);

   return implode('&', $parts);
 }

 /**
  * just uppercases the http method
  */
 public function get_normalized_http_method() {
   return strtoupper($this->http_method);
 }

 /**
  * parses the url and rebuilds it to be
  * scheme://host/path
  */
 public function get_normalized_http_url() {
   $parts = parse_url($this->http_url);

   $port = @$parts['port'];
   $scheme = $parts['scheme'];
   $host = $parts['host'];
   $path = @$parts['path'];

   $port or $port = ($scheme == 'https') ? '443' : '80';

   if (($scheme == 'https' && $port != '443')
       || ($scheme == 'http' && $port != '80')) {
     $host = "$host:$port";
   }
   return "$scheme://$host$path";
 }

 /**
  * builds a url usable for a GET request
  */
 public function to_url() {
   $post_data = $this->to_postdata();
   $out = $this->get_normalized_http_url();
   if ($post_data) {
     $out .= '?'.$post_data;
   }
   return $out;
 }

 /**
  * builds the data one would send in a POST request
  */
 public function to_postdata() {
   return OAuthUtil::build_http_query($this->parameters);
 }

 /**
  * builds the Authorization: header
  */
 public function to_header($realm=null) {
   $first = true;
   if($realm) {
     $out = 'Authorization: OAuth realm="' . OAuthUtil::urlencode_rfc3986($realm) . '"';
     $first = false;
   } else
     $out = 'Authorization: OAuth';

   $total = array();
   foreach ($this->parameters as $k => $v) {
     if (substr($k, 0, 5) != "oauth") continue;
     if (is_array($v)) {
       throw new OAuthException('Arrays not supported in headers');
     }
     $out .= ($first) ? ' ' : ',';
     $out .= OAuthUtil::urlencode_rfc3986($k) .
             '="' .
             OAuthUtil::urlencode_rfc3986($v) .
             '"';
     $first = false;
   }
   return $out;
 }

 public function __toString() {
   return $this->to_url();
 }


 public function sign_request($signature_method, $consumer, $token) {
   $this->set_parameter(
     "oauth_signature_method",
     $signature_method->get_name(),
     false
   );
   $signature = $this->build_signature($signature_method, $consumer, $token);
   $this->set_parameter("oauth_signature", $signature, false);
 }

 public function build_signature($signature_method, $consumer, $token) {
   $signature = $signature_method->build_signature($this, $consumer, $token);
   return $signature;
 }

 /**
  * util function: current timestamp
  */
 private static function generate_timestamp() {
   return time();
 }

 /**
  * util function: current nonce
  */
 private static function generate_nonce() {
   $mt = microtime();
   $rand = mt_rand();

   return md5($mt . $rand); // md5s look nicer than numbers
 }
}

class OAuthServer {
 protected $timestamp_threshold = 300; // in seconds, five minutes
 protected $version = '1.0';             // hi blaine
 protected $signature_methods = array();

 protected $data_store;

 function __construct($data_store) {
   $this->data_store = $data_store;
 }

 public function add_signature_method($signature_method) {
   $this->signature_methods[$signature_method->get_name()] =
     $signature_method;
 }

 // high level functions

 /**
  * process a request_token request
  * returns the request token on success
  */
 public function fetch_request_token(&$request) {
   $this->get_version($request);

   $consumer = $this->get_consumer($request);

   // no token required for the initial token request
   $token = NULL;

   $this->check_signature($request, $consumer, $token);

   // Rev A change
   $callback = $request->get_parameter('oauth_callback');
   $new_token = $this->data_store->new_request_token($consumer, $callback);

   return $new_token;
 }

 /**
  * process an access_token request
  * returns the access token on success
  */
 public function fetch_access_token(&$request) {
   $this->get_version($request);

   $consumer = $this->get_consumer($request);

   // requires authorized request token
   $token = $this->get_token($request, $consumer, "request");

   $this->check_signature($request, $consumer, $token);

   // Rev A change
   $verifier = $request->get_parameter('oauth_verifier');
   $new_token = $this->data_store->new_access_token($token, $consumer, $verifier);

   return $new_token;
 }

 /**
  * verify an api call, checks all the parameters
  */
 public function verify_request(&$request) {
   $this->get_version($request);
   $consumer = $this->get_consumer($request);
   $token = $this->get_token($request, $consumer, "access");
   $this->check_signature($request, $consumer, $token);
   return array($consumer, $token);
 }

 // Internals from here
 /**
  * version 1
  */
 private function get_version(&$request) {
   $version = $request->get_parameter("oauth_version");
   if (!$version) {
     // Service Providers MUST assume the protocol version to be 1.0 if this parameter is not present.
     // Chapter 7.0 ("Accessing Protected Ressources")
     $version = '1.0';
   }
   if ($version !== $this->version) {
     throw new OAuthException("OAuth version '$version' not supported");
   }
   return $version;
 }

 /**
  * figure out the signature with some defaults
  */
 private function get_signature_method(&$request) {
   $signature_method =
       @$request->get_parameter("oauth_signature_method");

   if (!$signature_method) {
     // According to chapter 7 ("Accessing Protected Ressources") the signature-method
     // parameter is required, and we can't just fallback to PLAINTEXT
     throw new OAuthException('No signature method parameter. This parameter is required');
   }

   if (!in_array($signature_method,
                 array_keys($this->signature_methods))) {
     throw new OAuthException(
       "Signature method '$signature_method' not supported " .
       "try one of the following: " .
       implode(", ", array_keys($this->signature_methods))
     );
   }
   return $this->signature_methods[$signature_method];
 }

 /**
  * try to find the consumer for the provided request's consumer key
  */
 private function get_consumer(&$request) {
   $consumer_key = @$request->get_parameter("oauth_consumer_key");
   if (!$consumer_key) {
     throw new OAuthException("Invalid consumer key");
   }

   $consumer = $this->data_store->lookup_consumer($consumer_key);
   if (!$consumer) {
     throw new OAuthException("Invalid consumer");
   }

   return $consumer;
 }

 /**
  * try to find the token for the provided request's token key
  */
 private function get_token(&$request, $consumer, $token_type="access") {
   $token_field = @$request->get_parameter('oauth_token');
   $token = $this->data_store->lookup_token(
     $consumer, $token_type, $token_field
   );
   if (!$token) {
     throw new OAuthException("Invalid $token_type token: $token_field");
   }
   return $token;
 }

 /**
  * all-in-one function to check the signature on a request
  * should guess the signature method appropriately
  */
 private function check_signature(&$request, $consumer, $token) {
   // this should probably be in a different method
   $timestamp = @$request->get_parameter('oauth_timestamp');
   $nonce = @$request->get_parameter('oauth_nonce');

   $this->check_timestamp($timestamp);
   $this->check_nonce($consumer, $token, $nonce, $timestamp);

   $signature_method = $this->get_signature_method($request);

   $signature = $request->get_parameter('oauth_signature');
   $valid_sig = $signature_method->check_signature(
     $request,
     $consumer,
     $token,
     $signature
   );

   if (!$valid_sig) {
     throw new OAuthException("Invalid signature");
   }
 }

 /**
  * check that the timestamp is new enough
  */
 private function check_timestamp($timestamp) {
   if( ! $timestamp )
     throw new OAuthException(
       'Missing timestamp parameter. The parameter is required'
     );
   
   // verify that timestamp is recentish
   $now = time();
   if (abs($now - $timestamp) > $this->timestamp_threshold) {
     throw new OAuthException(
       "Expired timestamp, yours $timestamp, ours $now"
     );
   }
 }

 /**
  * check that the nonce is not repeated
  */
 private function check_nonce($consumer, $token, $nonce, $timestamp) {
   if( ! $nonce )
     throw new OAuthException(
       'Missing nonce parameter. The parameter is required'
     );

   // verify that the nonce is uniqueish
   $found = $this->data_store->lookup_nonce(
     $consumer,
     $token,
     $nonce,
     $timestamp
   );
   if ($found) {
     throw new OAuthException("Nonce already used: $nonce");
   }
 }

}

class OAuthDataStore {
 function lookup_consumer($consumer_key) {
   // implement me
 }

 function lookup_token($consumer, $token_type, $token) {
   // implement me
 }

 function lookup_nonce($consumer, $token, $nonce, $timestamp) {
   // implement me
 }

 function new_request_token($consumer, $callback = null) {
   // return a new token attached to this consumer
 }

 function new_access_token($token, $consumer, $verifier = null) {
   // return a new access token attached to this consumer
   // for the user associated with this token if the request token
   // is authorized
   // should also invalidate the request token
 }

}

class OAuthUtil {
 public static function urlencode_rfc3986($input) {
 if (is_array($input)) {
   return array_map(array('OAuthUtil', 'urlencode_rfc3986'), $input);
 } else if (is_scalar($input)) {
   return str_replace(
     '+',
     ' ',
     str_replace('%7E', '~', rawurlencode($input))
   );
 } else {
   return '';
 }
}


 // This decode function isn't taking into consideration the above
 // modifications to the encoding process. However, this method doesn't
 // seem to be used anywhere so leaving it as is.
 public static function urldecode_rfc3986($string) {
   return urldecode($string);
 }

 // Utility function for turning the Authorization: header into
 // parameters, has to do some unescaping
 // Can filter out any non-oauth parameters if needed (default behaviour)
 public static function split_header($header, $only_allow_oauth_parameters = true) {
   $pattern = '/(([-_a-z]*)=("([^"]*)"|([^,]*)),?)/';
   $offset = 0;
   $params = array();
   while (preg_match($pattern, $header, $matches, PREG_OFFSET_CAPTURE, $offset) > 0) {
     $match = $matches[0];
     $header_name = $matches[2][0];
     $header_content = (isset($matches[5])) ? $matches[5][0] : $matches[4][0];
     if (preg_match('/^oauth_/', $header_name) || !$only_allow_oauth_parameters) {
       $params[$header_name] = OAuthUtil::urldecode_rfc3986($header_content);
     }
     $offset = $match[1] + strlen($match[0]);
   }

   if (isset($params['realm'])) {
     unset($params['realm']);
   }

   return $params;
 }

 // helper to try to sort out headers for people who aren't running apache
 public static function get_headers() {
   if (function_exists('apache_request_headers')) {
     // we need this to get the actual Authorization: header
     // because apache tends to tell us it doesn't exist
     $headers = apache_request_headers();

     // sanitize the output of apache_request_headers because
     // we always want the keys to be Cased-Like-This and arh()
     // returns the headers in the same case as they are in the
     // request
     $out = array();
     foreach( $headers AS $key => $value ) {
       $key = str_replace(
           " ",
           "-",
           ucwords(strtolower(str_replace("-", " ", $key)))
         );
       $out[$key] = $value;
     }
   } else {
     // otherwise we don't have apache and are just going to have to hope
     // that $_SERVER actually contains what we need
     $out = array();
     if( isset($_SERVER['CONTENT_TYPE']) )
       $out['Content-Type'] = $_SERVER['CONTENT_TYPE'];
     if( isset($_ENV['CONTENT_TYPE']) )
       $out['Content-Type'] = $_ENV['CONTENT_TYPE'];

     foreach ($_SERVER as $key => $value) {
       if (substr($key, 0, 5) == "HTTP_") {
         // this is chaos, basically it is just there to capitalize the first
         // letter of every word that is not an initial HTTP and strip HTTP
         // code from przemek
         $key = str_replace(
           " ",
           "-",
           ucwords(strtolower(str_replace("_", " ", substr($key, 5))))
         );
         $out[$key] = $value;
       }
     }
   }
   return $out;
 }

 // This function takes a input like a=b&a=c&d=e and returns the parsed
 // parameters like this
 // array('a' => array('b','c'), 'd' => 'e')
 public static function parse_parameters( $input ) {
   if (!isset($input) || !$input) return array();

   $pairs = explode('&', $input);

   $parsed_parameters = array();
   foreach ($pairs as $pair) {
     $split = explode('=', $pair, 2);
     $parameter = OAuthUtil::urldecode_rfc3986($split[0]);
     $value = isset($split[1]) ? OAuthUtil::urldecode_rfc3986($split[1]) : '';

     if (isset($parsed_parameters[$parameter])) {
       // We have already recieved parameter(s) with this name, so add to the list
       // of parameters with this name

       if (is_scalar($parsed_parameters[$parameter])) {
         // This is the first duplicate, so transform scalar (string) into an array
         // so we can add the duplicates
         $parsed_parameters[$parameter] = array($parsed_parameters[$parameter]);
       }

       $parsed_parameters[$parameter][] = $value;
     } else {
       $parsed_parameters[$parameter] = $value;
     }
   }
   return $parsed_parameters;
 }

 public static function build_http_query($params) {
   if (!$params) return '';

   // Urlencode both keys and values
   $keys = OAuthUtil::urlencode_rfc3986(array_keys($params));
   $values = OAuthUtil::urlencode_rfc3986(array_values($params));
   $params = array_combine($keys, $values);

   // Parameters are sorted by name, using lexicographical byte value ordering.
   // Ref: Spec: 9.1.1 (1)
   uksort($params, 'strcmp');

   $pairs = array();
   foreach ($params as $parameter => $value) {
     if (is_array($value)) {
       // If two or more parameters share the same name, they are sorted by their value
       // Ref: Spec: 9.1.1 (1)
       natsort($value);
       foreach ($value as $duplicate_value) {
         $pairs[] = $parameter . '=' . $duplicate_value;
       }
     } else {
       $pairs[] = $parameter . '=' . $value;
     }
   }
   // For each parameter, the name is separated from the corresponding value by an '=' character (ASCII code 61)
   // Each name-value pair is separated by an '&' character (ASCII code 38)
   return implode('&', $pairs);
 }
}

?>


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  Apskatīt (26 komentāri) mad pirms 9 gadiem teica:

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