ax.php

简介：IceBB是一个强大

                                $value_key));
                    }

                    $value = $ax_args[$value_key];
                    $values[] = $value;
                }
            } else {
                $key = 'value.' . $alias;

                if (!array_key_exists($key, $ax_args)) {
                  return new Auth_OpenID_AX_Error(
                    sprintf(
                            "No value found for key %s",
                            $key));
                }

                $value = $ax_args['value.' . $alias];

                if ($value == '') {
                    $values = array();
                } else {
                    $values = array($value);
                }
            }

            $this->data[$type_uri] = $values;
        }

        return true;
    }

    /**
     * Get a single value for an attribute. If no value was sent for
     * this attribute, use the supplied default. If there is more than
     * one value for this attribute, this method will fail.
     *
     * @param type_uri: The URI for the attribute
     * @param default: The value to return if the attribute was not
     * sent in the fetch_response.
     *
     * @return $value Auth_OpenID_AX_Error on failure or the value of
     * the attribute in the fetch_response message, or the default
     * supplied
     */
    function getSingle($type_uri, $default=null)
    {
        $values = Auth_OpenID::arrayGet($this->data, $type_uri);
        if (!$values) {
            return $default;
        } else if (count($values) == 1) {
            return $values[0];
        } else {
            return new Auth_OpenID_AX_Error(
              sprintf('More than one value present for %s',
                      $type_uri)
              );
        }
    }

    /**
     * Get the list of values for this attribute in the
     * fetch_response.
     *
     * XXX: what to do if the values are not present? default
     * parameter? this is funny because it's always supposed to return
     * a list, so the default may break that, though it's provided by
     * the user's code, so it might be okay. If no default is
     * supplied, should the return be None or []?
     *
     * @param type_uri: The URI of the attribute
     *
     * @return $values The list of values for this attribute in the
     * response. May be an empty list.  If the attribute was not sent
     * in the response, returns Auth_OpenID_AX_Error.
     */
    function get($type_uri)
    {
        if (array_key_exists($type_uri, $this->data)) {
            return $this->data[$type_uri];
        } else {
            return new Auth_OpenID_AX_Error(
              sprintf("Type URI %s not found in response",
                      $type_uri)
              );
        }
    }

    /**
     * Get the number of responses for a particular attribute in this
     * fetch_response message.
     *
     * @param type_uri: The URI of the attribute
     *
     * @returns int The number of values sent for this attribute.  If
     * the attribute was not sent in the response, returns
     * Auth_OpenID_AX_Error.
     */
    function count($type_uri)
    {
        if (array_key_exists($type_uri, $this->data)) {
            return count($this->get($type_uri));
        } else {
            return new Auth_OpenID_AX_Error(
              sprintf("Type URI %s not found in response",
                      $type_uri)
              );
        }
    }
}

/**
 * A fetch_response attribute exchange message.
 *
 * @package OpenID
 */
class Auth_OpenID_AX_FetchResponse extends Auth_OpenID_AX_KeyValueMessage {
    var $mode = 'fetch_response';

    function Auth_OpenID_AX_FetchResponse($update_url=null)
    {
        $this->Auth_OpenID_AX_KeyValueMessage();
        $this->update_url = $update_url;
    }

    /**
     * Serialize this object into arguments in the attribute exchange
     * namespace
     *
     * @return $args The dictionary of unqualified attribute exchange
     * arguments that represent this fetch_response, or
     * Auth_OpenID_AX_Error on error.
     */
    function getExtensionArgs(&$request)
    {
        $aliases = new Auth_OpenID_NamespaceMap();

        $zero_value_types = array();

        if ($request !== null) {
            // Validate the data in the context of the request (the
            // same attributes should be present in each, and the
            // counts in the response must be no more than the counts
            // in the request)

            foreach ($this->data as $type_uri => $unused) {
                if (!$request->contains($type_uri)) {
                    return new Auth_OpenID_AX_Error(
                      sprintf("Response attribute not present in request: %s",
                              $type_uri)
                      );
                }
            }

            foreach ($request->iterAttrs() as $attr_info) {
                // Copy the aliases from the request so that reading
                // the response in light of the request is easier
                if ($attr_info->alias === null) {
                    $aliases->add($attr_info->type_uri);
                } else {
                    $alias = $aliases->addAlias($attr_info->type_uri,
                                                $attr_info->alias);

                    if ($alias === null) {
                        return new Auth_OpenID_AX_Error(
                          sprintf("Could not add alias %s for URI %s",
                                  $attr_info->alias, $attr_info->type_uri)
                          );
                    }
                }

                if (array_key_exists($attr_info->type_uri, $this->data)) {
                    $values = $this->data[$attr_info->type_uri];
                } else {
                    $values = array();
                    $zero_value_types[] = $attr_info;
                }

                if (($attr_info->count != Auth_OpenID_AX_UNLIMITED_VALUES) &&
                    ($attr_info->count < count($values))) {
                    return new Auth_OpenID_AX_Error(
                      sprintf("More than the number of requested values " .
                              "were specified for %s",
                              $attr_info->type_uri)
                      );
                }
            }
        }

        $kv_args = $this->_getExtensionKVArgs($aliases);

        // Add the KV args into the response with the args that are
        // unique to the fetch_response
        $ax_args = $this->_newArgs();

        // For each requested attribute, put its type/alias and count
        // into the response even if no data were returned.
        foreach ($zero_value_types as $attr_info) {
            $alias = $aliases->getAlias($attr_info->type_uri);
            $kv_args['type.' . $alias] = $attr_info->type_uri;
            $kv_args['count.' . $alias] = '0';
        }

        $update_url = null;
        if ($request) {
            $update_url = $request->update_url;
        } else {
            $update_url = $this->update_url;
        }

        if ($update_url) {
            $ax_args['update_url'] = $update_url;
        }

        Auth_OpenID::update(&$ax_args, $kv_args);

        return $ax_args;
    }

    /**
     * @return $result Auth_OpenID_AX_Error on failure or true on
     * success.
     */
    function parseExtensionArgs($ax_args)
    {
        $result = parent::parseExtensionArgs($ax_args);

        if (Auth_OpenID_AX::isError($result)) {
            return $result;
        }

        $this->update_url = Auth_OpenID::arrayGet($ax_args, 'update_url');

        return true;
    }

    /**
     * Construct a FetchResponse object from an OpenID library
     * SuccessResponse object.
     *
     * @param success_response: A successful id_res response object
     *
     * @param signed: Whether non-signed args should be processsed. If
     * True (the default), only signed arguments will be processsed.
     *
     * @return $response A FetchResponse containing the data from the
     * OpenID message
     */
    function &fromSuccessResponse($success_response, $signed=true)
    {
        $obj = new Auth_OpenID_AX_FetchResponse();
        if ($signed) {
            $ax_args = $success_response->getSignedNS($obj->ns_uri);
        } else {
            $ax_args = $success_response->message->getArgs($obj->ns_uri);
        }

        return $obj->parseExtensionArgs($ax_args);
    }
}

/**
 * A store request attribute exchange message representation.
 *
 * @package OpenID
 */
class Auth_OpenID_AX_StoreRequest extends Auth_OpenID_AX_KeyValueMessage {
    var $mode = 'store_request';

    /**
     * @param array $aliases The namespace aliases to use when making
     * this store response. Leave as None to use defaults.
     */
    function getExtensionArgs($aliases=null)
    {
        $ax_args = $this->_newArgs();
        $kv_args = $this->_getExtensionKVArgs($aliases);
        Auth_OpenID::update(&$ax_args, $kv_args);
        return $ax_args;
    }
}

/**
 * An indication that the store request was processed along with this
 * OpenID transaction.  Use make(), NOT the constructor, to create
 * response objects.
 *
 * @package OpenID
 */
class Auth_OpenID_AX_StoreResponse extends Auth_OpenID_AX_Message {
    var $SUCCESS_MODE = 'store_response_success';
    var $FAILURE_MODE = 'store_response_failure';

    /**
     * Returns Auth_OpenID_AX_Error on error or an
     * Auth_OpenID_AX_StoreResponse object on success.
     */
    function &make($succeeded=true, $error_message=null)
    {
        if (($succeeded) && ($error_message !== null)) {
            return new Auth_OpenID_AX_Error('An error message may only be '.
                                    'included in a failing fetch response');
        }

        return new Auth_OpenID_AX_StoreResponse($succeeded, $error_message);
    }

    function Auth_OpenID_AX_StoreResponse($succeeded=true, $error_message=null)
    {
        if ($succeeded) {
            $this->mode = $this->SUCCESS_MODE;
        } else {
            $this->mode = $this->FAILURE_MODE;
        }

        $this->error_message = $error_message;
    }

    /**
     * Was this response a success response?
     */
    function succeeded()
    {
        return $this->mode == $this->SUCCESS_MODE;
    }

    function getExtensionArgs()
    {
        $ax_args = $this->_newArgs();
        if ((!$this->succeeded()) && $this->error_message) {
            $ax_args['error'] = $this->error_message;
        }

        return $ax_args;
    }
}

?>