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(PHP ActiveX) OneDrive -- Streaming REST Download to FileDownloads the contents of a DriveItem directly to a file in the local filesystem using the Chilkat REST class. Note: This example requires Chilkat v9.5.0.69 or greater.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $rest = new COM("Chilkat_9_5_0.Rest"); // Use your previously obtained access token here: // See the following examples for getting an access token: // Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint). // Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint). // Refresh Access Token (Azure AD v2.0 Endpoint). // Refresh Access Token (Azure AD Endpoint). // First connect to graph.microsoft.com. If there's a connectivity problem, we'll find out here. $success = $rest->Connect('graph.microsoft.com',443,1,1); if ($success != 1) { print $rest->LastErrorText . "\n"; exit; } // (Make sure your token was obtained with the FilesRead or Files.ReadWrite scope.) $oauth2 = new COM("Chilkat_9_5_0.OAuth2"); $oauth2->AccessToken = 'MICROSOFT_GRAPH_ACCESS_TOKEN'; $rest->SetAuthOAuth2($oauth2); // Send the GET request to download the file. $uriPath = '/v1.0/me/drive/root:/Misc/wildlife/penguins.jpg:/content'; $success = $rest->SendReqNoBody('GET',$uriPath); if ($rest->LastMethodSuccess != 1) { print $rest->LastErrorText . "\n"; exit; } // NOTE: This way of doing the HTTP GET (i.e. download) may be more cumbersome, but it // allows for finer control of handling errors. The connection establishment, the sending of the // request, the reading of the response header, and the reading of the response body (i.e. the file data) // are handled by separate method calls. If the response header indicates an error, we can read // the response body and treat it differently than if reading the file data. // Read the response header. $statusCode = $rest->ReadResponseHeader(); print 'Response Status Code = ' . $statusCode . "\n"; if ($statusCode == 302) { // This is a redirect. Read the response body, if any, and then follow the redirect. // Usually the response body will be empty for a redirect, but we need to be sure to read // the response body just in case it exists. $discard = new COM("Chilkat_9_5_0.BinData"); $rest->ReadRespBd($discard); $rest->Disconnect(10); // For OneDrive, the redirect URL does not need authorization because the only way // to have obtained the direct download URL is from an authenticated request. // In fact, if we leave the authentication present, the GET request to the redirect URL will fail. // Note: The ClearAuth method is introduced in v9.5.0.69. $rest->ClearAuth(); // Follow the redirect URL... // redirectUrl is a Chilkat_9_5_0.Url $redirectUrl = $rest->RedirectUrl(); print 'Redirect Host: ' . $redirectUrl->Host . "\n"; print 'Redirect URI Path: ' . $redirectUrl->PathWithQueryParams . "\n"; $success = $rest->Connect($redirectUrl->Host,$redirectUrl->Port,$redirectUrl->Ssl,1); if ($success != 1) { print $rest->LastErrorText . "\n"; exit; } // Send the request.. $success = $rest->SendReqNoBody('GET',$redirectUrl->Path); if ($rest->LastMethodSuccess != 1) { print $rest->LastErrorText . "\n"; exit; } $statusCode = $rest->ReadResponseHeader(); print $rest->LastErrorText . "\n"; print 'Redirect Response Status Code = ' . $statusCode . "\n"; } if ($statusCode >= 300) { // Read the error response body. $sbJson = new COM("Chilkat_9_5_0.StringBuilder"); $success = $rest->ReadRespSb($sbJson); if ($success != 1) { print $rest->LastErrorText . "\n"; exit; } $jsonErr = new COM("Chilkat_9_5_0.JsonObject"); $jsonErr->EmitCompact = 0; $jsonErr->LoadSb($sbJson); print $jsonErr->emit() . "\n"; exit; } // Stream the response body directly to a local file. $localPath = 'qa_output/penguins.jpg'; $stream = new COM("Chilkat_9_5_0.Stream"); $stream->SinkFile = $localPath; $success = $rest->ReadRespBodyStream($stream,1); if ($success != 1) { print $rest->LastErrorText . "\n"; exit; } print 'Successfully streamed a OneDrive file to the local filesystem.' . "\n"; ?> |
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