<?php

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/**

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* This is an HTTP client class for Cloud Files. It uses PHP's cURL module

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* to handle the actual HTTP request/response. This is NOT a generic HTTP

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* client class and is only used to abstract out the HTTP communication for

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* the PHP Cloud Files API.

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*

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* This module was designed to re-use existing HTTP(S) connections between

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* subsequent operations. For example, performing multiple PUT operations

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* will re-use the same connection.

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*

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* This modules also provides support for streaming content into and out

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* of Cloud Files. The majority (all?) of the PHP HTTP client modules expect

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* to read the server's response into a string variable. This will not work

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* with large files without killing your server. Methods like,

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* get_object_to_stream() and put_object() take an open filehandle

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* argument for streaming data out of or into Cloud Files.

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*

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* Requres PHP 5.x (for Exceptions and OO syntax)

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*

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* See COPYING for license information.

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*

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* @author Eric "EJ" Johnson <ej@racklabs.com>

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* @copyright Copyright (c) 2008, Rackspace US, Inc.

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* @package php-cloudfiles-http

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*/

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/**

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*/

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require_once("cloudfiles_exceptions.php");

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@define("PHP_CF_VERSION", "1.7.11");

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@define("USER_AGENT", sprintf("PHP-CloudFiles/%s", PHP_CF_VERSION));

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@define("MAX_HEADER_NAME_LEN", 128);

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@define("MAX_HEADER_VALUE_LEN", 256);

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@define("ACCOUNT_CONTAINER_COUNT", "X-Account-Container-Count");

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@define("ACCOUNT_BYTES_USED", "X-Account-Bytes-Used");

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@define("ACCOUNT_KEY", "X-Account-Meta-Key");

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@define("ACCOUNT_METADATA_HEADER_PREFIX", "X-Account-Meta-");

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@define("CONTAINER_OBJ_COUNT", "X-Container-Object-Count");

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@define("CONTAINER_BYTES_USED", "X-Container-Bytes-Used");

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@define("CONTAINER_METADATA_HEADER_PREFIX", "X-Container-Meta-");

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@define("DELETE_AFTER", "X-Delete-After");

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@define("DELETE_AT", "X-Delete-At");

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@define("MANIFEST_HEADER", "X-Object-Manifest");

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@define("METADATA_HEADER_PREFIX", "X-Object-Meta-");

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@define("CONTENT_HEADER_PREFIX", "Content-");

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@define("ACCESS_CONTROL_HEADER_PREFIX", "Access-Control-");

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@define("ORIGIN_HEADER", "Origin");

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@define("CDN_URI", "X-CDN-URI");

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@define("CDN_SSL_URI", "X-CDN-SSL-URI");

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@define("CDN_STREAMING_URI", "X-CDN-Streaming-URI");

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@define("CDN_ENABLED", "X-CDN-Enabled");

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@define("CDN_LOG_RETENTION", "X-Log-Retention");

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@define("CDN_ACL_USER_AGENT", "X-User-Agent-ACL");

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@define("CDN_ACL_REFERRER", "X-Referrer-ACL");

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@define("CDN_TTL", "X-TTL");

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@define("CDNM_URL", "X-CDN-Management-Url");

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@define("STORAGE_URL", "X-Storage-Url");

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@define("AUTH_TOKEN", "X-Auth-Token");

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@define("AUTH_USER_HEADER", "X-Auth-User");

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@define("AUTH_KEY_HEADER", "X-Auth-Key");

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@define("AUTH_USER_HEADER_LEGACY", "X-Storage-User");

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@define("AUTH_KEY_HEADER_LEGACY", "X-Storage-Pass");

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@define("AUTH_TOKEN_LEGACY", "X-Storage-Token");

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@define("CDN_EMAIL", "X-Purge-Email");

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@define("DESTINATION", "Destination");

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@define("ETAG_HEADER", "ETag");

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@define("LAST_MODIFIED_HEADER", "Last-Modified");

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@define("CONTENT_TYPE_HEADER", "Content-Type");

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@define("CONTENT_LENGTH_HEADER", "Content-Length");

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@define("USER_AGENT_HEADER", "User-Agent");

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/**

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* HTTP/cURL wrapper for Cloud Files

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*

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* This class should not be used directly. It's only purpose is to abstract

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* out the HTTP communication from the main API.

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*

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* @package php-cloudfiles-http

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*/

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class UpdraftPlus_CF_Http

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{

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private $error_str;

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private $dbug;

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private $cabundle_path;

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private $api_version;

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# Authentication instance variables

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#

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private $storage_url;

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private $cdnm_url;

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private $auth_token;

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# Request/response variables

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#

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private $response_status;

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private $response_reason;

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private $connections;

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# Variables used for content/header callbacks

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#

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private $_user_read_progress_callback_func;

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private $_user_write_progress_callback_func;

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private $_write_callback_type;

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private $_text_list;

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private $_account_metadata;

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private $_account_container_count;

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private $_account_bytes_used;

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private $_account_key;

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private $_container_metadata;

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private $_container_object_count;

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private $_container_bytes_used;

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private $_obj_delete_after;

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private $_obj_delete_at;

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private $_obj_etag;

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private $_obj_last_modified;

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private $_obj_content_type;

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private $_obj_content_length;

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private $_obj_metadata;

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private $_obj_headers;

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private $_obj_manifest;

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private $_obj_write_resource;

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private $_obj_write_string;

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private $_cdn_enabled;

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private $_cdn_ssl_uri;

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private $_cdn_streaming_uri;

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private $_cdn_uri;

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private $_cdn_ttl;

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private $_cdn_log_retention;

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private $_cdn_acl_user_agent;

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private $_cdn_acl_referrer;

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function __construct($api_version)

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{

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$this->dbug = False;

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$this->cabundle_path = NULL;

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$this->api_version = $api_version;

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$this->error_str = NULL;

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$this->storage_url = NULL;

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$this->cdnm_url = NULL;

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$this->auth_token = NULL;

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$this->response_status = NULL;

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$this->response_reason = NULL;

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# Curl connections array - since there is no way to "re-set" the

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# connection paramaters for a cURL handle, we keep an array of

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# the unique use-cases and funnel all of those same type

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# requests through the appropriate curl connection.

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#

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$this->connections = array(

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"GET_CALL" => NULL, # GET objects/containers/lists

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"PUT_OBJ" => NULL, # PUT object

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"HEAD" => NULL, # HEAD requests

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"PUT_CONT" => NULL, # PUT container

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"DEL_POST" => NULL, # DELETE containers/objects, POST objects

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"COPY" => null, # COPY objects

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);

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$this->_user_read_progress_callback_func = NULL;

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$this->_user_write_progress_callback_func = NULL;

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$this->_write_callback_type = NULL;

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$this->_text_list = array();

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$this->_return_list = NULL;

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$this->_account_metadata = array();

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$this->_account_key = NULL;

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$this->_account_container_count = 0;

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$this->_account_bytes_used = 0;

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$this->_container_metadata = array();

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$this->_container_object_count = 0;

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$this->_container_bytes_used = 0;

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$this->_obj_delete_after = NULL;

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$this->_obj_delete_at = NULL;

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$this->_obj_write_resource = NULL;

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$this->_obj_write_string = "";

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$this->_obj_etag = NULL;

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$this->_obj_last_modified = NULL;

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$this->_obj_content_type = NULL;

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$this->_obj_content_length = NULL;

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$this->_obj_metadata = array();

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$this->_obj_manifest = NULL;

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$this->_obj_headers = NULL;

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$this->_cdn_enabled = NULL;

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$this->_cdn_ssl_uri = NULL;

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$this->_cdn_streaming_uri = NULL;

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$this->_cdn_uri = NULL;

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$this->_cdn_ttl = NULL;

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$this->_cdn_log_retention = NULL;

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$this->_cdn_acl_user_agent = NULL;

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$this->_cdn_acl_referrer = NULL;

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# The OS list with a PHP without an updated CA File for CURL to

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# connect to SSL Websites. It is the first 3 letters of the PHP_OS

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# variable.

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$OS_CAFILE_NONUPDATED=array(

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"win","dar"

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);

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// We don't want this happening automatically - since the UpdraftPlus default is to use our own certificate already

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// if (in_array((strtolower (substr(PHP_OS, 0,3))), $OS_CAFILE_NONUPDATED))

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// $this->ssl_use_cabundle();

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}

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function ssl_use_cabundle($path=NULL)

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{

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if ($path) {

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$this->cabundle_path = $path;

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} else {

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$this->cabundle_path = UPDRAFTPLUS_DIR.'/includes/cacert.pem';

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}

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if (!file_exists($this->cabundle_path)) {

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throw new IOException("Could not use CA bundle: "

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. $this->cabundle_path);

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}

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return;

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}

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# Uses separate cURL connection to authenticate

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#

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function authenticate($user, $pass, $acct=NULL, $host=NULL)

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{

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$path = array();

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if (isset($acct)){

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$headers = array(

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sprintf("%s: %s", AUTH_USER_HEADER_LEGACY, $user),

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sprintf("%s: %s", AUTH_KEY_HEADER_LEGACY, $pass),

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);

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$path[] = $host;

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$path[] = rawurlencode(sprintf("v%d",$this->api_version));

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$path[] = rawurlencode($acct);

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} else {

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$headers = array(

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sprintf("%s: %s", AUTH_USER_HEADER, $user),

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sprintf("%s: %s", AUTH_KEY_HEADER, $pass),

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);

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$path[] = $host;

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}

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$path[] = "v1.0";

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$url = implode("/", $path);

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$curl_ch = curl_init();

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if (!is_null($this->cabundle_path)) {

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curl_setopt($curl_ch, CURLOPT_CAINFO, $this->cabundle_path);

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}

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if (defined('UPDRAFTPLUS_SSL_DISABLEVERIFY')) {

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curl_setopt($curl_ch, CURLOPT_SSL_VERIFYPEER, UPDRAFTPLUS_SSL_DISABLEVERIFY);

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} elseif (UpdraftPlus_Options::get_updraft_option('updraft_ssl_disableverify')) {

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curl_setopt($curl_ch, CURLOPT_SSL_VERIFYPEER, false);

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} else {

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curl_setopt($curl_ch, CURLOPT_SSL_VERIFYPEER, true);

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}

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curl_setopt($curl_ch, CURLOPT_VERBOSE, $this->dbug);

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curl_setopt($curl_ch, CURLOPT_FOLLOWLOCATION, 1);

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curl_setopt($curl_ch, CURLOPT_MAXREDIRS, 4);

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curl_setopt($curl_ch, CURLOPT_HEADER, 0);

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curl_setopt($curl_ch, CURLOPT_HTTPHEADER, $headers);

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curl_setopt($curl_ch, CURLOPT_USERAGENT, USER_AGENT);

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curl_setopt($curl_ch, CURLOPT_RETURNTRANSFER, TRUE);

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curl_setopt($curl_ch, CURLOPT_HEADERFUNCTION,array(&$this,'_auth_hdr_cb'));

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curl_setopt($curl_ch, CURLOPT_CONNECTTIMEOUT, 10);

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curl_setopt($curl_ch, CURLOPT_URL, $url);

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curl_exec($curl_ch);

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curl_close($curl_ch);

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return array($this->response_status, $this->response_reason,

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$this->storage_url, $this->cdnm_url, $this->auth_token);

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}

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# (CDN) GET /v1/Account

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#

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function list_cdn_containers($enabled_only)

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{

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$conn_type = "GET_CALL";

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$url_path = $this->_make_path("CDN");

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$this->_write_callback_type = "TEXT_LIST";

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if ($enabled_only)

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{

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$return_code = $this->_send_request($conn_type, $url_path .

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'/?enabled_only=true');

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}

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else

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{

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$return_code = $this->_send_request($conn_type, $url_path);

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}

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if (!$return_code) {

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$this->error_str .= ": Failed to obtain valid HTTP response.";

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return array(0,$this->error_str,array());

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}

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if ($return_code == 401) {

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return array($return_code,"Unauthorized",array());

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}

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if ($return_code == 404) {

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return array($return_code,"Account not found.",array());

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}

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if ($return_code == 204) {

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return array($return_code,"Account has no CDN enabled Containers.",

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array());

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}

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if ($return_code == 200) {

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$this->create_array();

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return array($return_code,$this->response_reason,$this->_text_list);

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}

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$this->error_str = "Unexpected HTTP response: ".$this->response_reason;

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return array($return_code,$this->error_str,array());

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}

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[309] Fix | Delete

# (CDN) DELETE /v1/Account/Container or /v1/Account/Container/Object

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#

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function purge_from_cdn($path, $email=null)

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{

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if(!$path)

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throw new SyntaxException("Path not set");

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$url_path = $this->_make_path("CDN", NULL, $path);

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if($email)

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{

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$hdrs = array(CDN_EMAIL => $email);

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$return_code = $this->_send_request("DEL_POST",$url_path,$hdrs,"DELETE");

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}

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else

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$return_code = $this->_send_request("DEL_POST",$url_path,null,"DELETE");

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return $return_code;

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}

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# (CDN) POST /v1/Account/Container

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function update_cdn_container($container_name, $ttl=86400, $cdn_log_retention=False,

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$cdn_acl_user_agent="", $cdn_acl_referrer)

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{

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if ($container_name == "")

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throw new SyntaxException("Container name not set.");

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if ($container_name != "0" and !isset($container_name))

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throw new SyntaxException("Container name not set.");

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$url_path = $this->_make_path("CDN", $container_name);

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$hdrs = array(

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CDN_ENABLED => "True",

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CDN_TTL => $ttl,

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CDN_LOG_RETENTION => $cdn_log_retention ? "True" : "False",

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CDN_ACL_USER_AGENT => $cdn_acl_user_agent,

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CDN_ACL_REFERRER => $cdn_acl_referrer,

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);

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$return_code = $this->_send_request("DEL_POST",$url_path,$hdrs,"POST");

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if ($return_code == 401) {

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$this->error_str = "Unauthorized";

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return array($return_code, $this->error_str, NULL);

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}

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if ($return_code == 404) {

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$this->error_str = "Container not found.";

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return array($return_code, $this->error_str, NULL);

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}

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if ($return_code != 202) {

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$this->error_str="Unexpected HTTP response: ".$this->response_reason;

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return array($return_code, $this->error_str, NULL);

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}

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return array($return_code, "Accepted", $this->_cdn_uri, $this->_cdn_ssl_uri);

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[359] Fix | Delete

}

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# (CDN) PUT /v1/Account/Container

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#

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function add_cdn_container($container_name, $ttl=86400)

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{

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if ($container_name == "")

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throw new SyntaxException("Container name not set.");

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if ($container_name != "0" and !isset($container_name))

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throw new SyntaxException("Container name not set.");

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$url_path = $this->_make_path("CDN", $container_name);

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$hdrs = array(

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CDN_ENABLED => "True",

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CDN_TTL => $ttl,

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);

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$return_code = $this->_send_request("PUT_CONT", $url_path, $hdrs);

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if ($return_code == 401) {

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$this->error_str = "Unauthorized";

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return array($return_code,$this->response_reason,False);

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}

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if (!in_array($return_code, array(201,202))) {

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$this->error_str="Unexpected HTTP response: ".$this->response_reason;

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return array($return_code,$this->response_reason,False);

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}

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return array($return_code,$this->response_reason,$this->_cdn_uri,

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$this->_cdn_ssl_uri);

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}

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[389] Fix | Delete

# (CDN) POST /v1/Account/Container

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#

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function remove_cdn_container($container_name)

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{

[393] Fix | Delete

if ($container_name == "")

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throw new SyntaxException("Container name not set.");

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[396] Fix | Delete

if ($container_name != "0" and !isset($container_name))

[397] Fix | Delete

throw new SyntaxException("Container name not set.");

[398] Fix | Delete

[399] Fix | Delete

$url_path = $this->_make_path("CDN", $container_name);

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$hdrs = array(CDN_ENABLED => "False");

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$return_code = $this->_send_request("DEL_POST",$url_path,$hdrs,"POST");

[402] Fix | Delete

if ($return_code == 401) {

[403] Fix | Delete

$this->error_str = "Unauthorized";

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return array($return_code, $this->error_str);

[405] Fix | Delete

}

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if ($return_code == 404) {

[407] Fix | Delete

$this->error_str = "Container not found.";

[408] Fix | Delete

return array($return_code, $this->error_str);

[409] Fix | Delete

}

[410] Fix | Delete

if ($return_code != 202) {

[411] Fix | Delete

$this->error_str="Unexpected HTTP response: ".$this->response_reason;

[412] Fix | Delete

return array($return_code, $this->error_str);

[413] Fix | Delete

}

[414] Fix | Delete

return array($return_code, "Accepted");

[415] Fix | Delete

}

[416] Fix | Delete

[417] Fix | Delete

# (CDN) HEAD /v1/Account

[418] Fix | Delete

#

[419] Fix | Delete

function head_cdn_container($container_name)

[420] Fix | Delete

{

[421] Fix | Delete

if ($container_name == "")

[422] Fix | Delete

throw new SyntaxException("Container name not set.");

[423] Fix | Delete

[424] Fix | Delete

if ($container_name != "0" and !isset($container_name))

[425] Fix | Delete

throw new SyntaxException("Container name not set.");

[426] Fix | Delete

[427] Fix | Delete

$conn_type = "HEAD";

[428] Fix | Delete

$url_path = $this->_make_path("CDN", $container_name);

[429] Fix | Delete

$return_code = $this->_send_request($conn_type, $url_path, NULL, "GET", True);

[430] Fix | Delete

[431] Fix | Delete

if (!$return_code) {

[432] Fix | Delete

$this->error_str .= ": Failed to obtain valid HTTP response.";

[433] Fix | Delete

return array(0,$this->error_str,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);

[434] Fix | Delete

}

[435] Fix | Delete

if ($return_code == 401) {

[436] Fix | Delete

return array($return_code,"Unauthorized",NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);

[437] Fix | Delete

}

[438] Fix | Delete

if ($return_code == 404) {

[439] Fix | Delete

return array($return_code,"Account not found.",NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);

[440] Fix | Delete

}

[441] Fix | Delete

if ($return_code == 204) {

[442] Fix | Delete

return array($return_code,$this->response_reason,

[443] Fix | Delete

$this->_cdn_enabled, $this->_cdn_ssl_uri,

[444] Fix | Delete

$this->_cdn_streaming_uri,

[445] Fix | Delete

$this->_cdn_uri, $this->_cdn_ttl,

[446] Fix | Delete

$this->_cdn_log_retention,

[447] Fix | Delete

$this->_cdn_acl_user_agent,

[448] Fix | Delete

$this->_cdn_acl_referrer

[449] Fix | Delete

);

[450] Fix | Delete

}

[451] Fix | Delete

return array($return_code,$this->response_reason,

[452] Fix | Delete

NULL,NULL,NULL,NULL,

[453] Fix | Delete

$this->_cdn_log_retention,

[454] Fix | Delete

$this->_cdn_acl_user_agent,

[455] Fix | Delete

$this->_cdn_acl_referrer,

[456] Fix | Delete

NULL

[457] Fix | Delete

);

[458] Fix | Delete

}

[459] Fix | Delete

[460] Fix | Delete

# GET /v1/Account

[461] Fix | Delete

#

[462] Fix | Delete

function list_containers($limit=0, $marker=NULL)

[463] Fix | Delete

{

[464] Fix | Delete

$conn_type = "GET_CALL";

[465] Fix | Delete

$url_path = $this->_make_path();

[466] Fix | Delete

[467] Fix | Delete

$limit = intval($limit);

[468] Fix | Delete

$params = array();

[469] Fix | Delete

if ($limit > 0) {

[470] Fix | Delete

$params[] = "limit=$limit";

[471] Fix | Delete

}

[472] Fix | Delete

if ($marker) {

[473] Fix | Delete

$params[] = "marker=".rawurlencode($marker);

[474] Fix | Delete

}

[475] Fix | Delete

if (!empty($params)) {

[476] Fix | Delete

$url_path .= "?" . implode("&", $params);

[477] Fix | Delete

}

[478] Fix | Delete

[479] Fix | Delete

$this->_write_callback_type = "TEXT_LIST";

[480] Fix | Delete

$return_code = $this->_send_request($conn_type, $url_path);

[481] Fix | Delete

[482] Fix | Delete

if (!$return_code) {

[483] Fix | Delete

$this->error_str .= ": Failed to obtain valid HTTP response.";

[484] Fix | Delete

return array(0,$this->error_str,array());

[485] Fix | Delete

}

[486] Fix | Delete

if ($return_code == 204) {

[487] Fix | Delete

return array($return_code, "Account has no containers.", array());

[488] Fix | Delete

}

[489] Fix | Delete

if ($return_code == 404) {

[490] Fix | Delete

$this->error_str = "Invalid account name for authentication token.";

[491] Fix | Delete

return array($return_code,$this->error_str,array());

[492] Fix | Delete

}

[493] Fix | Delete

if ($return_code == 200) {

[494] Fix | Delete

$this->create_array();

[495] Fix | Delete

return array($return_code, $this->response_reason, $this->_text_list);

[496] Fix | Delete

}

[497] Fix | Delete

$this->error_str = "Unexpected HTTP response: ".$this->response_reason;

[498] Fix | Delete

return array($return_code,$this->error_str,array());

[499] Fix | Delete