PHP Safe::json_encode方法代码示例

 /**
  * build a response on server side
  *
  * [php]
  * $result = $codec->export_response($values, $service);
  * if(!$result[0])
  *	echo $result[1]; // print error code
  * else
  *	... // send data from $result[1] to the web client
  * [/php]
  *
  * @param mixed transmitted values, if any
  * @param string name of the remote service, if any
  * @return an array of which the first value indicates call success or failure
  */
 function export_response($values = NULL, $service = NULL)
 {
     // a structured response
     $response = array();
     $response['result'] = $values;
     $response['error'] = NULL;
     if (empty($values['id'])) {
         $response['id'] = NULL;
     } else {
         $response['id'] = $values['id'];
         unset($response['result']['id']);
     }
     // encode it and deliver the outcome
     if ($encoded = Safe::json_encode($response)) {
         return array(TRUE, $encoded);
     }
     return array(FALSE, 'No way to encode the request');
 }

        register_shutdown_function('on_shutdown');
    }
    // else wait for some update --on time out, browser will recall us anyway
    $response =& Comments::pull($anchor->get_reference(), isset($_REQUEST['timestamp']) ? gmstrftime('%Y-%m-%d %H:%M:%S', $_REQUEST['timestamp']) : 0);
    // shutdown is not an error anymore
    $pending = FALSE;
    // ensure that the conversation is on-going
    $status = 'started';
    if ($anchor->get_value('locked') == 'Y') {
        $status = 'stopped';
    } else {
        $fields = array();
        $fields['id'] = $anchor->get_value('id');
        $fields['overlay'] = $anchor->get_value('overlay');
        if ($overlay = Overlay::load($fields, $anchor->get_reference())) {
            $status = $overlay->get_value('status', 'started');
        }
    }
    // provide page status
    $response['status'] = $status;
    // encode result in JSON
    $output = Safe::json_encode($response);
    // allow for data compression
    render_raw('application/json; charset=' . $context['charset']);
    // actual transmission except on a HEAD request
    if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] != 'HEAD') {
        echo $output;
    }
    // the post-processing hook, then exit
    finalize_page(TRUE);
}

 /**
  * the URL to start and to join the meeting
  *
  * @see overlays/events/start.php
  *
  * @return string the URL to redirect the user to the meeting, or NULL on error
  */
 function get_start_url()
 {
     global $context;
     // almost random passwords
     $this->initialize_passwords();
     // link to authenticate
     $url = 'https://my.dimdim.com/api/auth/login';
     // parameters to authenticate
     $parameters = array();
     $parameters['account'] = $this->attributes['account'];
     $parameters['password'] = $this->attributes['password'];
     $parameters['group'] = 'all';
     // encode in json
     $data = array('request' => Safe::json_encode($parameters));
     // do authenticate
     if ($response = http::proceed($url, '', $data)) {
         // successful authentication
         $output = Safe::json_decode($response);
         if (isset($output['result']) && $output['result']) {
             // remember the authentication token
             $fields = array('token' => $output['response']['authToken']);
             $this->set_values($fields);
             // link to create a meeting
             $url = 'https://my.dimdim.com/api/conf/start_meeting';
             // provide authentication token
             $headers = 'X-Dimdim-Auth-Token: ' . $this->attributes['token'] . CRLF;
             // parameters to create a meeting
             $parameters = array();
             $parameters['authToken'] = $this->attributes['token'];
             $parameters['account'] = $this->attributes['account'];
             $parameters['clientId'] = Surfer::get_id();
             $parameters['displayName'] = Surfer::get_name();
             $parameters['meetingName'] = $this->anchor->get_title();
             $parameters['roomName'] = $this->anchor->get_title();
             $parameters['meetingLengthMinutes'] = $this->attributes['duration'];
             $parameters['attendeeKey'] = $this->attendee_password;
             $parameters['assistantEnabled'] = 'false';
             // disable some features
             $parameters['displayDialInfo'] = 'false';
             // message displayed within the BigBlueButton session
             $welcome = '';
             // meeting title
             if (is_object($this->anchor)) {
                 $welcome .= sprintf(i18n::s('%s: %s'), i18n::s('Title'), $this->anchor->get_title()) . "\n";
             }
             // meeting date
             if (isset($this->attributes['date_stamp'])) {
                 $welcome .= sprintf(i18n::s('%s: %s'), i18n::s('Date'), Skin::build_date($this->attributes['date_stamp'], 'standalone')) . "\n";
             }
             // meeting duration
             if (isset($this->attributes['duration'])) {
                 $welcome .= sprintf(i18n::s('%s: %s'), i18n::s('Duration'), $this->attributes['duration'] . ' ' . i18n::s('minutes')) . "\n";
             }
             // build a link to the owner page, if any
             if (is_object($this->anchor) && ($user = Users::get($this->anchor->get_value('owner_id')))) {
                 $welcome .= sprintf(i18n::s('%s: %s'), i18n::s('Chairman'), $user['full_name']) . "\n";
             }
             // welcome message
             $parameters['agenda'] = $welcome;
             // return URL
             if (is_callable(array($this->anchor, 'get_url'))) {
                 $parameters['returnurl'] = $context['url_to_home'] . $context['url_to_root'] . $this->anchor->get_url();
             }
             // encode in json
             $data = array('request' => Safe::json_encode($parameters));
             // do the transaction
             if ($response = http::proceed($url, $headers, $data)) {
                 // successful transaction
                 $output = Safe::json_decode($response);
                 if (isset($output['result']) && $output['result']) {
                     // redirect to the target page
                     return 'https://my.dimdim.com/redirect?clientId=' . urlencode(Surfer::get_id()) . '&account=' . urlencode($this->attributes['account']);
                 }
             }
         }
     }
     // don't know where to go
     return NULL;
 }

    $response['id'] = NULL;
} else {
    $response['id'] = $parameters['id'];
}
// do not reply if the sender has sent a notification, and if there is no error
if ($response['id'] == NULL && $response['error'] == NULL) {
    $response = '';
} else {
    // JSON-RPC 2.0 requires either some result, or an error, but not both
    if (isset($response['jsonrpc'])) {
        if ($response['error'] == NULL) {
            unset($response['error']);
        } else {
            unset($response['result']);
        }
    }
    // encode the response
    $response = Safe::json_encode($response);
    // save the response if debug mode
    if (isset($context['debug_rpc']) && $context['debug_rpc'] == 'Y') {
        Logger::remember('services/json_rpc.php: json_rpc response', $response, 'debug');
    }
}
// handle the output correctly
render_raw('application/json; charset=' . $context['charset']);
// actual transmission except on a HEAD request
if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] != 'HEAD') {
    echo $response;
}
// the post-processing hook
finalize_page();

                break;
            }
        }
        // to be returned to caller
        $response['session_id'] = substr($data, $head, $tail - $head);
        // prepare the authentication token
        $credentials = 'session_id=' . $response['session_id'] . '&create_time=' . time() . '&role=publisher' . '&nonce=' . microtime(true) . mt_rand();
        // hash credentials using secret
        $hash = hash_hmac('sha1', $credentials, $context['opentok_api_secret']);
        // finalize the authentication token expected by OpenTok
        $response['token'] = 'T1==' . base64_encode('partner_id=' . $context['opentok_api_key'] . '&sig=' . $hash . ':' . $credentials);
        // handle the output correctly
        render_raw('application/json; charset=' . $context['charset']);
        // actual transmission except on a HEAD request
        if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] != 'HEAD') {
            echo Safe::json_encode($response);
        }
        // the post-processing hook
        finalize_page();
        return;
    }
    // some error has occured
    Safe::header('Status: 400 Bad Request', TRUE, 400);
    die(Logger::error_pop());
    // manage the OpenTok session
} else {
    // leverage URL rewriting if possible
    switch ($context['with_friendly_urls']) {
        case 'Y':
            $link = $context['url_to_home'] . $context['url_to_root'] . 'faceme.php/';
            break;

 /**
  * package credentials to be passed in a link
  *
  * @param string action (e.g., 'visit', see users/login.php)
  * @param string reference to target (e.g., 'section:123')
  * @param string name or e-mail address
  * @param string salt to be used for the hash
  * @return string the link to be authenticated
  */
 public static function get_login_url($command, $reference, $name, $salt)
 {
     global $context;
     // build a signed
     $credentials = array();
     $credentials[0] = $command;
     $credentials[1] = $reference;
     $credentials[2] = $name;
     $credentials[3] = sprintf('%u', crc32($command . ':' . $reference . ':' . $name . ':' . $salt));
     // we prefer JSON over PHP serialization
     if (!($serialized = Safe::json_encode($credentials))) {
         $serialized = serialize($credentials);
     }
     // finalize the snippet
     $id = base64_encode($serialized);
     // be cool with search engines
     if ($context['with_friendly_urls'] == 'Y') {
         return 'users/login.php/' . rawurlencode($id);
     } elseif ($context['with_friendly_urls'] == 'R') {
         return 'users/login.php/' . rawurlencode($id);
     } else {
         return 'users/login.php?credentials=' . urlencode($id);
     }
 }