PHP ActiveX

Download File from Dropbox (Streaming)

See more Dropbox Examples

Downloads a file from Dropbox, streaming it directly to a file in the filesystem. PHP ActiveX

<?php

$success = 0;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// A Dropbox access token should have been previously obtained.
// Dropbox access tokens do not expire.
// See Dropbox Access Token.

$rest = new COM("Chilkat.Rest");

// Connect to Dropbox
$success = $rest->Connect('content.dropboxapi.com',443,1,1);
if ($success == 0) {
    print $rest->LastErrorText . "\n";
    exit;
}

// Add request headers.
$rest->AddHeader('Authorization','Bearer DROPBOX_ACCESS_TOKEN');

// The download "parameters" are contained in JSON passed in an HTTP request header.
// This is the JSON indicating the file to be downloaded:
// { 
//    "path": "/Homework/lit/hamlet.xml",
// }

$json = new COM("Chilkat.JsonObject");
$json->AppendString('path','/Homework/lit/hamlet.xml');
$rest->AddHeader('Dropbox-API-Arg',$json->emit());

// Setup a file stream for the download
$fileStream = new COM("Chilkat.Stream");
$fileStream->SinkFile = 'qa_output/hamletFromDropbox.xml';

// Indicate that the call to FullRequestNoBody should send the response body
// to fileStream if the response status code is 200.
// If a non-success response status code is received, then nothing
// is streamed to the output file and the error response is returned by FullRequestNoBody.
$expectedStatus = 200;
$rest->SetResponseBodyStream($expectedStatus,1,$fileStream);

$responseStr = $rest->fullRequestNoBody('POST','/2/files/download');
if ($rest->LastMethodSuccess == 0) {
    print $rest->LastErrorText . "\n";
    exit;
}

// When successful, Dropbox responds with a 200 response code.
if ($rest->ResponseStatusCode != 200) {
    // Examine the request/response to see what happened.
    print 'response status code = ' . $rest->ResponseStatusCode . "\n";
    print 'response status text = ' . $rest->ResponseStatusText . "\n";
    print 'response header: ' . $rest->ResponseHeader . "\n";
    print 'response body (if any): ' . $responseStr . "\n";
    print '---' . "\n";
    print 'LastRequestStartLine: ' . $rest->LastRequestStartLine . "\n";
    print 'LastRequestHeader: ' . $rest->LastRequestHeader . "\n";
    exit;
}

// Information about the downloaded file is also available as JSON in a response header.
// The "dropbox-api-result" response header contains the information.  For example:
$apiResult = $rest->responseHdrByName('dropbox-api-result');
print $apiResult . "\n";

// In this case, the pretty-formatted dropbox-api-result JSON looks like this:
// { 
//   "name": "hamlet.xml",
//   "path_lower": "/homework/lit/hamlet.xml",
//   "path_display": "/Homework/lit/hamlet.xml",
//   "id": "id:74FkdeNuyKAAAAAAAAAAAQ",
//   "client_modified": "2016-06-02T23:19:00Z",
//   "server_modified": "2016-06-02T23:19:00Z",
//   "rev": "9482db15f",
//   "size": 279658
// }

// Load the JSON, pretty-print it, and demonstrate how to get some values...
$jsonResult = new COM("Chilkat.JsonObject");
$jsonResult->EmitCompact = 0;
$jsonResult->Load($apiResult);
// Show the JSON pretty-printed...
print $jsonResult->emit() . "\n";

// Sample code to get data from the JSON response:
$size = $jsonResult->IntOf('size');
print 'size = ' . $size . "\n";

$rev = $jsonResult->stringOf('rev');
print 'rev = ' . $rev . "\n";

$clientModified = $jsonResult->stringOf('client_modified');
$ckdt = new COM("Chilkat.CkDateTime");
$ckdt->SetFromTimestamp($clientModified);
$bLocalTime = 1;
$dt = new COM("Chilkat.DtObj");
$ckdt->ToDtObj($bLocalTime,$dt);

print $dt->Day . '/' . $dt->Month . '/' . $dt->Year . ' ' . $dt->Hour . ':' . $dt->Minute . "\n";

?>