Joomla-Sermon-Distributor/site/helpers/dropbox.php

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<?php
/*----------------------------------------------------------------------------------| www.vdm.io |----/
Vast Development Method
/-------------------------------------------------------------------------------------------------------/
@version 2.0.3 - 27th January, 2018
@package Dropbox API 2
@subpackage dropbox.php
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@author Llewellyn van der Merwe <http://www.vdm.io>
@copyright Copyright (C) 2015. All Rights Reserved
@license GNU/GPL Version 2 or later - http://www.gnu.org/licenses/gpl-2.0.html
/------------------------------------------------------------------------------------------------------*/
// No direct access.
defined('_JEXEC') or die;
/**
* Dropbox class to get shared links
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*/
class Dropbox
{
/**
* final url
*/
protected $url;
/**
* The array for the post url
*/
protected $postUrl = array(
"protocol" => "https://",
"suddomain" => "api.",
"domain" => "dropboxapi.com",
"path" => "/2/"
);
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/**
* the verious pathes we need
*/
protected $domainpath = array(
"list_shared_links" => "sharing/list_shared_links",
"list_folder" => "files/list_folder",
"list_folder_continue" => "files/list_folder/continue",
"create_shared_link_with_settings" => "sharing/create_shared_link_with_settings",
"get_shared_link_metadata" => "sharing/get_shared_link_metadata",
"revoke" => "auth/token/revoke"
);
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/**
* the target path to get
*/
protected $targetPath = false;
protected $targetPathOriginal = false;
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/**
* oauth token
*/
protected $oauthToken = array();
protected $token = 0;
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/**
* the verious pathes we need
*/
protected $permissionType;
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/**
* The array of queries for creating shared links
*/
protected $createSharedLinks = array();
protected $createSharedLinks_ = array(); // retry array
/**
* The array of queries for getting shared links
*/
protected $getSharedLinks = array();
protected $getSharedLinks_ = array(); // retry array
/**
* the success switch
*/
protected $succes;
/**
* the type call
*/
protected $type;
/**
* the query for the call
*/
protected $query;
/**
* the query for the call
*/
protected $model;
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/**
* the slow down timer
*/
protected $slowdown = 0;
/**
* the speed up switch
*/
protected $speedup = false;
/**
* the mediaData bucket
*/
public $mediaData = array();
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/**
* the error messages
*/
public $error_summary = array();
/**
* force the update to reset
**/
public $forceReset = false;
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/**
* Constructor
*/
public function __construct(JModelLegacy $model, $buildType)
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{
// set the first call
$this->firstCall = 'get'; // TODO (we may what to make this dynamic)
// set the second call
$this->secondCall = 'create'; // TODO (we may what to make this dynamic)
// set the url at this point for now
$this->url = $this->postUrl["protocol"].$this->postUrl["suddomain"].$this->postUrl["domain"].$this->postUrl["path"];
// set the local model
$this->model = $model;
// set the build type
$this->build = (int) $buildType;
}
/**
* getFiles
*
* =============
* $details
* =============
* sourceID
* dropboxOption
* dropboxTarget
* addTypes
*
*/
public function getFiles($token, $permissiontype, $details = array())
{
// we need more then the normal time to run this script 5 minutes at least.
ini_set('max_execution_time', 500);
// little tweak for big folders (use multy tokens)
if (strpos($token, '____') !== false)
{
$this->oauthToken = array_filter((array) explode('____', $token),
function ($string) {
return $this->checkString($string);
});
}
else
{
// set the oauth toke
$this->oauthToken = array($token);
}
// set the permission type
$this->permissionType = $permissiontype;
// set the details
if ($this->checkArray($details))
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{
foreach ($details as $detail => $value)
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{
$this->$detail = $value;
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}
}
// set the curent folder path
if (!$this->setFolderPath())
{
return false;
}
// start the main factory that calles for the folder data
$this->query = array("path" => $this->targetPath, "recursive" => true, "include_media_info" => true);
$this->type = 'list_folder';
if ($this->makeCall())
{
if ($this->_isCurl())
{
// run the share link builder
return $this->makeMultiExecCalls();
}
return true;
}
return false;
}
protected function getToken()
{
$key = $this->token;
if (isset($this->oauthToken[$key]))
{
// update key
$this->token++;
return $this->oauthToken[$key];
}
// reset key
$this->token = 1;
// return first token
return $this->oauthToken[0];
}
protected function makeMultiExecCalls()
{
$this->succesCall = true;
// make the fist call
$this->multiSharedLinks($this->firstCall);
// make the second call
$this->multiSharedLinks($this->secondCall);
// slow down if needed
$this->speedup = false;
// for safety
if (($this->checkArray($this->createSharedLinks) || $this->checkArray($this->createSharedLinks_) ||
$this->checkArray($this->getSharedLinks) || $this->checkArray($this->getSharedLinks_)) &&
$this->succesCall)
{
return $this->makeMultiExecCalls();
}
// all done
return $this->succesCall;
}
protected function multiSharedLinks($type)
{
switch ($type)
{
case "create":
// great links if not made already
if ($this->checkArray($this->createSharedLinks) || $this->checkArray($this->createSharedLinks_))
{
$url = $this->url.$this->domainpath['create_shared_link_with_settings'];
$this->type = 'create_shared_link_with_settings';
// build return function
$storeSharedLink = function ($data, $target) {
// check if we are going to fast
if (isset($data->error_summary) && strpos($data->error_summary, 'too_many_requests') !== false)
{
$this->slowDown($data);
// this call was droped, so we must try again
$this->createSharedLinks_[] = json_encode(array("path" => $target, "settings" => array("requested_visibility" => "public")));
}
// check if link already made
elseif (isset($data->error_summary) && strpos($data->error_summary, 'shared_link_already_exists') !== false)
{
$this->getSharedLinks[] = json_encode(array("path" => $target));
}
else
{
$this->curlCallResult($data);
}
};
// run call
if ($this->checkArray($this->createSharedLinks))
{
$this->multiCall($url, 'createSharedLinks', $storeSharedLink);
}
// also run the retries
if ($this->checkArray($this->createSharedLinks_))
{
$this->multiCall($url, 'createSharedLinks_', $storeSharedLink);
}
}
break;
case "get":
// now get the already made links
if ($this->checkArray($this->getSharedLinks) || $this->checkArray($this->getSharedLinks_))
{
$url = $this->url.$this->domainpath['list_shared_links'];
$this->type = 'list_shared_links';
// build return function
$storeSharedLink = function ($data, $target) {
// check if link not made
if (isset($data->error_summary) && strpos($data->error_summary, 'too_many_requests') !== false)
{
$this->slowDown($data);
// this call was droped, so we must try again
$this->getSharedLinks_[] = json_encode(array("path" => $target));
}
elseif (isset($data->error_summary))
{
$this->createSharedLinks[] = json_encode(array("path" => $target, "settings" => array("requested_visibility" => "public")));
}
else
{
$this->curlCallResult($data);
}
};
// run call
if ($this->checkArray($this->getSharedLinks))
{
$this->multiCall($url, 'getSharedLinks', $storeSharedLink);
}
// also run the retries
if ($this->checkArray($this->getSharedLinks_))
{
$this->multiCall($url, 'getSharedLinks_', $storeSharedLink);
}
}
break;
}
}
protected function multiCall(&$url, $type, &$storeSharedLink)
{
$timer = 1;
$options = array();
// set the options array and make the calls every 550
foreach ($this->{$type} as $query)
{
$options[] = array(CURLOPT_HTTPHEADER => array('Authorization: Bearer ' . $this->getToken(), 'Content-Type: application/json'), CURLOPT_POST => 1, CURLOPT_POSTFIELDS => $query); $timer++;
// check timer
if ($timer >= 550)
{
// run multi curl
$this->curlMultiExec($url, $options, $storeSharedLink);
// reset
$timer = 1;
$options = array();
}
}
// make sure all was done
if ($timer > 1 && $this->checkArray($options))
{
// run multi curl
$this->curlMultiExec($url, $options, $storeSharedLink);
}
// reset the values
$this->{$type} = array();
// check if we have errors
if ($this->checkArray($this->error_summary))
{
$this->succesCall = false;
}
}
public function slowDown($data)
{
if (!$this->speedup)
{
// set default
$this->slowdown = 300000000;
// can we set it dynamicly
if (isset($data->error) && isset($data->error->retry_after))
{
// convert retry_after minutes to microseconds
$this->slowdown = (int) bcmul($data->error->retry_after, 1000000);
}
}
}
public function revokeToken($token = null)
{
if ($token)
{
// set the oauth toke
$this->oauthToken[] = $token;
}
// set the call to revoke the token
$this->query = 'null';
$this->type = 'revoke';
// remove all tokens
$removed = true;
if ($this->checkArray($this->oauthToken))
{
foreach($this->oauthToken as $token)
{
if (!$this->makeCall())
{
$removed = false;
}
}
return $removed;
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}
return false;
}
protected function setFolderPath()
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{
if ('full' == $this->permissionType && isset($this->dropboxOption) && isset($this->dropboxTarget) && $this->checkString($this->dropboxTarget))
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{
if (2 == $this->dropboxOption)
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{
// simply set the path
$this->targetPath = '/'.trim(strtolower($this->dropboxTarget), '/');
return true;
}
elseif (1 == $this->dropboxOption)
{
// make a call to get the path
$this->query = array("url" => $this->dropboxTarget);
$this->type = 'get_shared_link_metadata';
if ($this->makeCall())
{
return true;
}
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}
}
elseif ('app' == $this->permissionType)
{
$this->targetPath = "";
return true;
}
return false;
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}
protected function makeCall()
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{
if ($this->_isCurl())
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{
return $this->makeCurlCall();
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}
else
{
return $this->makeGetCall();
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}
}
protected function makeGetCall()
{
$options = array(
'http' => array(
'header' => "Content-Type: application/json\r\n".
"Authorization: Bearer ".$this->getToken(),
'method' => "POST"
),
);
if ($this->checkArray($this->query))
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{
$this->query = json_encode($this->query);
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}
// add the query
if ($this->checkString($this->query))
{
$options['http']['content'] = $this->query;
}
$context = stream_context_create($options);
$response = file_get_contents($this->url.$this->domainpath[$this->type], false, $context);
// store the result
return $this->getCallResult($response);
}
protected function getCallResult($response)
{
if ($response === FALSE)
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{
$this->error_summary[] = $this->type.'_error';
return false;
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}
// store the result
return $this->setTheResult(json_decode($response));
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}
protected function makeCurlCall()
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{
// do not run creat shared link this way
$headers = array('Authorization: Bearer '. $this->getToken(),
'Content-Type: application/json'
);
$ch = curl_init($this->url.$this->domainpath[$this->type]);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// check if query is set
if ($this->checkArray($this->query))
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{
$this->query = json_encode($this->query);
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}
// add the query
if ($this->checkString($this->query))
{
curl_setopt($ch, CURLOPT_POSTFIELDS, $this->query);
}
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// curl_setopt($ch, CURLOPT_VERBOSE, 1); // debug
$response = curl_exec($ch);
curl_close($ch);
// store the result
return $this->curlCallResult($response);
}
public function curlCallResult($response)
{
if ($this->checkJson($response))
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{
$response = json_decode($response);
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}
// store the result
return $this->setTheResult($response);
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}
protected function setTheResult($data)
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{
// if there was an error stop!!!
if (isset($data->error_summary))
{
$this->error_summary[] = $data->error_summary;
$this->forceReset = true;
return false;
}
// deal with each type
switch ($this->type)
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{
case "list_folder":
case "list_folder_continue":
if (isset($data->entries) && $this->checkArray($data->entries))
{
if ($this->storeFiles($data->entries))
{
// run the continue if needed
if (isset($data->has_more) && $data->has_more && isset($data->cursor))
{
// start the main factory that calles for the folder data
$this->query = array("cursor" => $data->cursor);
$this->type = 'list_folder_continue';
if ($this->makeCall())
{
return true;
}
}
return true;
}
}
$this->error_summary[] = $this->type.'_error';
break;
case "list_shared_links":
if (isset($data->links) && $this->checkArray($data->links))
{
foreach ($data->links as $link)
{
if (!$this->storeSharedLink($link))
{
// we could not stored the link
return false;
}
}
return true;
}
$this->error_summary[] = $this->type.'_error';
break;
case "create_shared_link_with_settings":
if ($this->storeSharedLink($data))
{
// we stored the link
return true;
}
$this->error_summary[] = $this->type.'_error';
break;
case "get_shared_link_metadata":
if (isset($data->path_lower))
{
$this->targetPath = $data->path_lower;
return true;
}
$this->error_summary[] = $this->type.'_error';
break;
case "revoke":
if (is_null($data))
{
return true;
}
$this->error_summary[] = $this->type.'_error';
break;
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}
$this->forceReset = true;
return false;
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}
protected function storeSharedLink($data)
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{
// we need to store the url to DB
if (isset($data->url) && isset($data->name) && isset($data->size) && (isset($data->path) || isset($data->path_lower)))
{
$path = (isset($data->path)) ? $data->path : $data->path_lower;
$localListing = array();
$localListing['id'] = 0;
$localListing['name'] = $data->name;
$localListing['size'] = $data->size;
$localListing['key'] = $this->fixPath($path);
$localListing['url'] = str_replace('?dl=0','?dl=1',$data->url);
$localListing['build'] = $this->build;
$localListing['external_source'] = (int) $this->sourceID;
// check if item already set
if ($id = $this->model->searchForId($localListing['key']))
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{
// update item
$localListing['id'] = $id;
}
return $this->model->save($localListing);
}
return false;
}
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protected function storeFiles($entries)
{
foreach ($entries as $item)
{
if (isset($item->{'.tag'}) && 'file' == $item->{'.tag'} && isset($item->name))
{
$addLink = false;
// remove if not related to type
if (isset($this->addTypes) && $this->checkArray($this->addTypes))
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{
foreach ($this->addTypes as $add)
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{
if (strpos($item->name,$add) !== false)
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{
$addLink = true;
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}
}
}
if ($addLink && isset($item->path_lower))
{
// set based on first call
if ('get' === $this->firstCall)
{
// first check if shared link exist
$this->query = array("path" => $item->path_lower);
// set the type of call
$this->type = 'list_shared_links';
}
else
{
// first check if shared link exist
$this->query = array("path" => $item->path_lower, "settings" => array("requested_visibility" => "public"));
// set the type of call
$this->type = 'create_shared_link_with_settings';
}
// if we have curl the use multi curl execution
if ($this->_isCurl())
{
// set query to worker
$this->{$this->firstCall."SharedLinks"}[] = json_encode($this->query);
}
elseif (!$this->makeCall())
{
return false;
}
}
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}
}
return true;
}
protected function fixPath($path)
{
if ($this->checkString($this->targetPath))
{
$path = str_replace($this->targetPath, 'VDM_pLeK_h0uEr', $path);
}
else
{
$path = 'VDM_pLeK_h0uEr'.$path;
}
return $path;
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}
protected function checkObject($object)
{
if (isset($object) && is_object($object) && count($object) > 0)
{
return true;
}
return false;
}
protected function checkArray($array)
{
if (isset($array) && is_array($array) && count($array) > 0)
{
return true;
}
return false;
}
protected function checkJson($string)
{
if ($this->checkString($string))
{
json_decode($string);
return (json_last_error() === JSON_ERROR_NONE);
}
return false;
}
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protected function checkString($string)
{
if (isset($string) && is_string($string) && strlen($string) > 0)
{
return true;
}
return false;
}
protected function _isCurl()
{
return function_exists('curl_version');
}
protected function curlMultiExec(&$url, &$_options, $callback = null)
{
if ($this->checkString($url))
{
// check if we should slow down
if ($this->slowdown > 0)
{
usleep($this->slowdown);
// reset the trafic speed
$this->slowdown = 0;
$this->speedup = true; // we should only sleep once per/bunch
}
// make sure the thread size isn't greater than the # of _options
$threadSize = 50;
$threadSize = (sizeof($_options) < $threadSize) ? sizeof($_options) : $threadSize;
// set the options
$options = array();
$options[CURLOPT_URL] = $url;
$options[CURLOPT_USERAGENT] = 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12';
$options[CURLOPT_RETURNTRANSFER] = TRUE;
$options[CURLOPT_SSL_VERIFYPEER] = FALSE;
// start multi threading :)
$handle = curl_multi_init();
// start the first batch of requests
for ($i = 0; $i < $threadSize; $i++)
{
if (isset($_options[$i]))
{
$ch = curl_init();
foreach ($_options[$i] as $curlopt => $string)
{
$options[$curlopt] = $string;
}
curl_setopt_array($ch, $options);
curl_multi_add_handle($handle, $ch);
}
}
// we wait for all the calls to finish (should not take long)
do {
while(($execrun = curl_multi_exec($handle, $working)) == CURLM_CALL_MULTI_PERFORM);
if($execrun != CURLM_OK)
break;
// a request was just completed -- find out which one
while($done = curl_multi_info_read($handle))
{
if (is_callable($callback))
{
// $info = curl_getinfo($done['handle']);
// request successful. process output using the callback function.
$output = curl_multi_getcontent($done['handle']);
if ($this->checkJson($output) && isset($_options[$i]))
{
$callback(json_decode($output), json_decode(end($_options[$i]))->path);
}
}
// check if we should slow down
if ($this->slowdown > 0)
{
usleep($this->slowdown);
// reset the trafic speed
$this->slowdown = 0;
$this->speedup = true; // we should only sleep once per/bunch
}
// next key
$key = $i + 1;
if(isset($_options[$key]))
{
// start a new request (it's important to do this before removing the old one)
$ch = curl_init(); $i++;
// add options
foreach ($_options[$key] as $curlopt => $string)
{
$options[$curlopt] = $string;
}
curl_setopt_array($ch, $options);
curl_multi_add_handle($handle, $ch);
// remove options again
foreach ($_options[$key] as $curlopt => $string)
{
unset($options[$curlopt]);
}
}
// remove the curl handle that just completed
curl_multi_remove_handle($handle, $done['handle']);
}
// stop wasting CPU cycles and rest for a couple ms
usleep(10000);
} while ($working);
// close the curl multi thread
curl_multi_close($handle);
// okay done
return true;
}
return false;
}
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}