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(Classic ASP) OneDrive -- Upload Large Files with an Upload SessionSee more OneDrive ExamplesDemonstrates how to upload large files with an upload session. See OneDrive Upload Session for more general information. Note: This example requires Chilkat v9.5.0.97 or greater.
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' This example requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. ' This example uses the OAuth client credentials flow. ' See How to Create an Azure App Registration for OAuth 2.0 Client Credentials ' Use your client ID, client secret, and tenant ID in the following lines ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject") set json = Server.CreateObject("Chilkat.JsonObject") success = json.UpdateString("client_id","2871da2c-8176-4b7f-869b-2311aa82e743") success = json.UpdateString("client_secret","2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH") success = json.UpdateString("scope","https://graph.microsoft.com/.default") success = json.UpdateString("token_endpoint","https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token") ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Http") set http = Server.CreateObject("Chilkat.Http") http.AuthToken = json.Emit() ' ---------------------------------------------------------------------------- ' Step 1: Create an upload session ' To begin a large file upload, your app must first request a new upload session. This creates a ' temporary storage location where the bytes of the file will be saved until the complete file is uploaded. ' Once the last byte of the file has been uploaded the upload session is completed and the final file is shown ' in the destination folder. ' Send the following POST to create an upload session: ' If not using "me", then the path should be /v1.0/users/{id | userPrincipalName}/... ' POST /v1.0/users/{user_id}/drive/root:/{path_to_item}:/createUploadSession success = http.SetUrlVar("path_to_item","/somefolder/big.zip") success = http.SetUrlVar("user_id","4fe732c3-322e-4a6b-b729-2fd1eb5c6104") url = "https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:/{$path_to_item}:/createUploadSession" ' resp is a Chilkat.HttpResponse Set resp = http.PostJson2(url,"application/json","{}") If (http.LastMethodSuccess <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>" Response.End End If ' If successful, a 200 status code is returned, with the session details (in JSON format). ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject") set jsonSession = Server.CreateObject("Chilkat.JsonObject") jsonSession.EmitCompact = 0 success = jsonSession.Load(resp.BodyStr) If (resp.StatusCode <> 200) Then Response.Write "<pre>" & Server.HTMLEncode( jsonSession.Emit()) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "Response status = " & resp.StatusCode) & "</pre>" Response.End End If Response.Write "<pre>" & Server.HTMLEncode( jsonSession.Emit()) & "</pre>" ' A sample response: ' { ' "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#microsoft.graph.uploadSession", ' "uploadUrl": "https://api.onedrive.com/rup/3a33fceb9b74cc15/eyJSZXNvdXJjZUlEI ... 65yDYUiS3JTDnnhqCHxw", ' "expirationDateTime": "2017-06-11T12:40:23.239Z", ' "nextExpectedRanges": [ ' "0-" ' ] ' } ' ' ---------------------------------------------------------------------------- ' Step 2: Upload Data in Segments (a.k.a. Fragments or Chunks) ' Microsoft states this requirement: Use a fragment size that is a multiple of 320 KiB (320 * 1024 bytes). ' Failing to use a fragment size that is a multiple of 320 KiB can result in large file transfers failing after the ' last fragment is uploaded. (Note: This is a detail imposed by Microsoft's OneDrive server-side implementation.) fragSize = 320 * 1024 localFilePath = "qa_data/zips/big.zip" ' Upload the file big.zip in 320KiB segments. ' Note: The FileSize method returns a signed 32-bit integer. If the file is potentially larger than 2GB, call FileSizeStr instead to return ' the size of the file as a string, then convert to an integer value. ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.FileAccess") set fac = Server.CreateObject("Chilkat.FileAccess") fileSize = fac.FileSize(localFilePath) ' Open the file to get the number of fragments. success = fac.OpenForRead(localFilePath) If (success = 0) Then Response.Write "<pre>" & Server.HTMLEncode( fac.LastErrorText) & "</pre>" Response.End End If numFragments = fac.GetNumBlocks(fragSize) fac.FileClose i = 0 Response.Write "<pre>" & Server.HTMLEncode( "fileSize = " & fileSize) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "numFragments = " & numFragments) & "</pre>" ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Url") set uploadUrl = Server.CreateObject("Chilkat.Url") success = uploadUrl.ParseUrl(jsonSession.StringOf("uploadUrl")) json.EmitCompact = 0 ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.HttpRequest") set req = Server.CreateObject("Chilkat.HttpRequest") req.HttpVerb = "PUT" req.Path = uploadUrl.PathWithQueryParams req.ContentType = "application/octet-stream" ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder") set sbOffset = Server.CreateObject("Chilkat.StringBuilder") ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder") set sbNumBytes = Server.CreateObject("Chilkat.StringBuilder") ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder") set sbRange = Server.CreateObject("Chilkat.StringBuilder") ' IMPORTANT: The uploadUrl is a temporary URL to be used to upload the fragment. ' It requires no authentication (because the URL itself could only have been obtained from an authenticated ' request to start the upload session). Therefore, do not allow the upload URL to be publicly seen, ' otherwise anybody could upload to your OneDrive. http.AuthToken = "" bytesRemaining = fileSize Do While i < numFragments ' The success response code for intermediate chunks is 202, ' whereas the final chunk will have a 201 success response where ' the response body is the JSON DriveItem. chunkSize = fragSize expectedStatusCode = 202 If (bytesRemaining < chunkSize) Then chunkSize = bytesRemaining expectedStatusCode = 201 End If Response.Write "<pre>" & Server.HTMLEncode( " this chunkSize = " & chunkSize) & "</pre>" ' Indicate the fragment in the local file to be streamed in the upload. sbOffset.Clear success = sbOffset.AppendInt(i * fragSize) sbNumBytes.Clear success = sbNumBytes.AppendInt(chunkSize) success = req.StreamChunkFromFile(localFilePath,sbOffset.GetAsString(),sbNumBytes.GetAsString()) ' The Content-Range header field must be set for this fragment. For example: ' Content-Range: bytes 0-25/128 success = sbRange.SetString("bytes start-end/fileSize") numReplaced = sbRange.ReplaceI("start",i * fragSize) numReplaced = sbRange.ReplaceI("end",i * fragSize + chunkSize - 1) numReplaced = sbRange.ReplaceI("fileSize",fileSize) req.AddHeader "Content-Range",sbRange.GetAsString() Response.Write "<pre>" & Server.HTMLEncode( " this content-range: " & sbRange.GetAsString()) & "</pre>" ' resp is a Chilkat.HttpResponse Set resp = http.SynchronousRequest(uploadUrl.Host,443,1,req) If (http.LastMethodSuccess <> 1) Then Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>" Response.End End If success = json.Load(resp.BodyStr) ' A 202 response status code indicates success. If (resp.StatusCode <> expectedStatusCode) Then Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "Response status = " & resp.StatusCode) & "</pre>" Response.End End If Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "---- Chunk " & i & " uploaded ----") & "</pre>" bytesRemaining = bytesRemaining - chunkSize i = i + 1 Loop Response.Write "<pre>" & Server.HTMLEncode( "data uploaded.") & "</pre>" ' ---------------------------------------------------------------------------- ' Sample output for the above session: ' { ' "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#microsoft.graph.uploadSession", ' "uploadUrl": "https://api.onedrive.com/rup/3a33fceb9b74cc15/eyJSZXNvd ... QoKK2iuh1A", ' "expirationDateTime": "2017-06-11T14:04:45.438Z", ' "nextExpectedRanges": [ ' "0-" ' ] ' } ' ' fileSize = 1366807 ' numFragments = 5 ' this chunkSize = 327680 ' this content-range: bytes 0-327679/1366807 ' { ' "expirationDateTime": "2017-06-11T14:04:45.438Z", ' "nextExpectedRanges": [ ' "327680-1366806" ' ] ' } ' ' ---- Chunk 0 uploaded ---- ' this chunkSize = 327680 ' this content-range: bytes 327680-655359/1366807 ' { ' "expirationDateTime": "2017-06-11T14:04:45.438Z", ' "nextExpectedRanges": [ ' "655360-1366806" ' ] ' } ' ' ---- Chunk 1 uploaded ---- ' this chunkSize = 327680 ' this content-range: bytes 655360-983039/1366807 ' { ' "expirationDateTime": "2017-06-11T14:04:45.438Z", ' "nextExpectedRanges": [ ' "983040-1366806" ' ] ' } ' ' ---- Chunk 2 uploaded ---- ' this chunkSize = 327680 ' this content-range: bytes 983040-1310719/1366807 ' { ' "expirationDateTime": "2017-06-11T14:04:45.438Z", ' "nextExpectedRanges": [ ' "1310720-1366806" ' ] ' } ' ' ---- Chunk 3 uploaded ---- ' this chunkSize = 56087 ' this content-range: bytes 1310720-1366806/1366807 ' { ' "createdBy": { ' "application": { ' "displayName": "Chilkat", ' "id": "441c9990" ' }, ' "user": { ' "id": "3a33fceb9b74cc15" ' } ' }, ' "createdDateTime": "2017-06-04T14:04:47.247Z", ' "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NjguMjU3", ' "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODY4LjA", ' "id": "3A33FCEB9B74CC15!4868", ' "lastModifiedBy": { ' "application": { ' "displayName": "Chilkat", ' "id": "441c9990" ' }, ' "user": { ' "id": "3a33fceb9b74cc15" ' } ' }, ' "lastModifiedDateTime": "2017-06-04T14:04:47.247Z", ' "name": "big.zip", ' "parentReference": { ' "driveId": "3a33fceb9b74cc15", ' "id": "3A33FCEB9B74CC15!4862", ' "name": "someFolder", ' "path": "/drive/root:/someFolder" ' }, ' "size": 1366807, ' "webUrl": "https://1drv.ms/u/s!ABXMdJvr_DM6pgQ", ' "file": { ' "hashes": { ' "sha1Hash": "252059AA13004220DB912B97D4D3FF9599CCD8D9" ' }, ' "mimeType": "application/zip" ' }, ' "fileSystemInfo": { ' "createdDateTime": "2017-06-04T14:04:47.246Z", ' "lastModifiedDateTime": "2017-06-04T14:04:47.246Z" ' }, ' "tags": [ ' ], ' "lenses": [ ' ] ' } ' ' Response status = 201 %> </body> </html> |
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