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update ASP example to support user and org names containing multibyte characters #15

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update ASP example to support user and org names containing multibyte characters #15

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9f4575a
adding UTF8 encoding function
jbdietrich Feb 21, 2014
6c25942
added updated base64 encoder to bundle
jbdietrich Feb 21, 2014
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30 changes: 28 additions & 2 deletions classic_asp_jwt_with_ad.asp
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,32 @@ Function JWTTokenForUser(dAttributes)
JWTTokenForUser = JWTEncode(dAttributes, sKey)
End Function

Function Encode_UTF8(astr)

utftext = ""

For n = 1 To Len(astr)
c = AscW(Mid(astr, n, 1))
If c < 128 Then
utftext = utftext + Mid(astr, n, 1)
ElseIf ((c > 127) And (c < 2048)) Then
utftext = utftext + Chr(((c \ 64) Or 192))
'((c>>6)|192);
utftext = utftext + Chr(((c And 63) Or 128))
'((c&63)|128);}
Else
utftext = utftext + Chr(((c \ 144) Or 234))
'((c>>12)|224);
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@jcheatham jcheatham Feb 21, 2014

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This doesn't seem to line up with what's being done in the line above...
1<<12 is 4096 and 224 != 234 :)
Maybe a simple function to help test & sanity check the encoding?

utftext = utftext + Chr((((c \ 64) And 63) Or 128))
'(((c>>6)&63)|128);
utftext = utftext + Chr(((c And 63) Or 128))
'((c&63)|128);
End If
Next

Encode_UTF8 = utftext
End Function

Function Debug(sMessage)
If dM Then
response.Write("[DEBUG] " & sMessage & "<br/>")
Expand Down Expand Up @@ -123,15 +149,15 @@ Function GetAuthenticatedUser()
If Not userRS.EOF and not err then
Set dAttributes = Server.CreateObject("Scripting.Dictionary")

dAttributes.Add "name", userRS("displayName").Value
dAttributes.Add "name", Encode_UTF8(userRS("displayName").Value)
dAttributes.Add "email", userRS("mail").Value

If sExternalIdField > "" Then
dAttributes.Add "external_id", userRS(sExternalIdField).Value
End If

If sOrganizationField > "" Then
dAttributes.Add "organization", userRS(sOrganizationField).Value
dAttributes.Add "organization", Encode_UTF8(userRS(sOrganizationField).Value)
End If

If sTagsField > "" Then
Expand Down