B4X
OneNote - Get Page HTML Content

Download the HTML content of a OneNote page. Also iterates over the images and attachments on the OneNote page and downloads the content for each.
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Dim success As Boolean = False

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

Dim http As ChilkatHttp
http.Initialize("http")

'  Implements the following CURL command:

'  curl -X GET https://graph.microsoft.com/v1.0/me/onenote/pages/{id}/content?includeIDs=true \
'    -H 'authorization: Bearer ACCESS_TOKEN'

'  Use the following online tool to generate HTTP code from a CURL command
'  Convert a cURL Command to HTTP Source Code

'  Adds the "Authorization: Bearer ACCESS_TOKEN" header.
http.AuthToken = "ACCESS_TOKEN"

http.SetUrlVar("page_id", "0-d2298668edd74dccac7f821fa378bf64!41-3A33FCEB9B74CC15!20350")

Dim sbResponseBody As ChilkatStringBuilder
sbResponseBody.Initialize
success = http.QuickGetSb("https://graph.microsoft.com/v1.0/me/onenote/pages/{$page_id}/content?includeIDs=true", sbResponseBody)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


Log("HTML content:")
Log(sbResponseBody.GetAsString)

Dim respStatusCode As Int = http.LastStatus
Log("Response Status Code = " & respStatusCode)
If respStatusCode >= 400 Then
    Log("Response Header:")
    Log(http.LastHeader)
    Log("Failed.")
    Return
End If


'  Let's get the images and attached files.
'  Here's sample HTML content with 2 images and one PDF attachment:

'  <html lang="en-US">
'  	<head>
'  		<title>A page with rendered images and an attached file</title>
'  		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
'  		<meta name="created" content="2020-10-23T12:00:00.0000000" />
'  	</head>
'  	<body data-absolute-enabled="true" style="font-family:Calibri;font-size:11pt">
'  		<div id="div:{b130eb6c-638a-4f97-8f7e-b6d9e2e88bf9}{32}" data-id="_default" style="position:absolute;left:48px;top:120px;width:624px">
'  			<p id="p:{b130eb6c-638a-4f97-8f7e-b6d9e2e88bf9}{39}" style="margin-top:5.5pt;margin-bottom:5.5pt">Here&#39;s an image from an online source:</p>
'  			<img id="img:{ee18fe8d-b219-4baf-9b4d-4fc680579f0d}{1}" alt="an image on the page" width="500" height="500" src="https://graph.microsoft.com/v1.0/users('admin@chilkat.io')/onenote/resources/0-e71b45b763484921b4200e32c2439a47!1-3A33FCEB9B74CC15!20350/$value" data-src-type="image/jpeg" data-fullres-src="https://graph.microsoft.com/v1.0/users('admin@chilkat.io')/onenote/resources/0-e71b45b763484921b4200e32c2439a47!1-3A33FCEB9B74CC15!20350/$value" data-fullres-src-type="image/jpeg" />
'  			<p id="p:{b130eb6c-638a-4f97-8f7e-b6d9e2e88bf9}{43}" style="margin-top:5.5pt;margin-bottom:5.5pt">Here&#39;s an image uploaded as binary data:</p>
'  			<img id="img:{ee18fe8d-b219-4baf-9b4d-4fc680579f0d}{3}" alt="an image on the page" width="300" height="225" src="https://graph.microsoft.com/v1.0/users('admin@chilkat.io')/onenote/resources/0-a60516b962b842f2ae9bec75c16b31de!1-3A33FCEB9B74CC15!20350/$value" data-src-type="image/jpeg" data-fullres-src="https://graph.microsoft.com/v1.0/users('admin@chilkat.io')/onenote/resources/0-a60516b962b842f2ae9bec75c16b31de!1-3A33FCEB9B74CC15!20350/$value" data-fullres-src-type="image/jpeg" />
'  			<p id="p:{b130eb6c-638a-4f97-8f7e-b6d9e2e88bf9}{47}" style="margin-top:5.5pt;margin-bottom:5.5pt">Here&#39;s a file attachment:</p>
'  			<object data-attachment="FileName.pdf" type="application/pdf" data="https://graph.microsoft.com/v1.0/users('admin@chilkat.io')/onenote/resources/0-9e685efb33a24a6a8de1b9c707d28385!1-3A33FCEB9B74CC15!20350/$value" />
'  		</div>
'  	</body>
'  </html>

Dim xml As ChilkatXml
xml.Initialize
xml.LoadSb(sbResponseBody, True)

'  Iterate over each element in the XML.  Each time we find an "img" or "object", download the data.
'  (The sbState is an object used to keep track of the current state of the traversal.)
Dim sbState As ChilkatStringBuilder
sbState.Initialize
Dim url As String
Dim bd As ChilkatBinData
bd.Initialize
Do While xml.NextInTraversal2(sbState) <> False

    If xml.TagEquals("img") = True Then
        Log("img id: " & xml.GetAttrValue("id"))
        url = xml.GetAttrValue("src")
        bd.Clear
        success = http.QuickGetBd(url, bd)
        If success = False Then
            Log(http.LastErrorText)
            Return
        End If

        Log("Downloaded from " & url)
        Log("----")
        '  If desired, bd.WriteFile to save the contents of bd to a file..
    End If


    If xml.TagEquals("object") = True Then
        Log("data-attachment: " & xml.GetAttrValue("data-attachment"))
        Log("type: " & xml.GetAttrValue("type"))
        url = xml.GetAttrValue("data")
        bd.Clear
        success = http.QuickGetBd(url, bd)
        If success = False Then
            Log(http.LastErrorText)
            Return
        End If

        Log("Downloaded from " & url)
        Log("----")
        '  If desired, bd.WriteFile to save the contents of bd to a file..
    End If

Loop

Log("Success.")