(Tcl) SharePoint -- Upload File

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Demonstrates how to upload a file to a SharePoint folder.

For more information, see https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/working-with-folders-and-files-with-rest

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load ./chilkat.dll

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

# -------------------------------------------------------------------------
# The following comments apply to SharePoint Windows classic authentication.
# -------------------------------------------------------------------------
# For example, imagine our SharePoint endpoint is https://xyzoffice.mycompany.com/
# The SHAREPOINT_NTLM_DOMAIN would be "mycompany.com"
# The SHAREPOINT_HTTPS_DOMAIN would be "xyzoffice.mycompany.com"
# Also, the SHAREPOINT_USERNAME would be just the name, not a full email address.
# for example, "chilkat" instead of "chilkat@mycompany.com"

set http [new_CkHttp]

# If SharePoint Windows classic authentication is used, then set the 
# Login, Password, LoginDomain, and NtlmAuth properties.
CkHttp_put_Login $http "SHAREPOINT_USERNAME"
CkHttp_put_Password $http "SHAREPOINT_PASSWORD"
CkHttp_put_LoginDomain $http "SHAREPOINT_NTLM_DOMAIN"
CkHttp_put_NtlmAuth $http 1

# -------------------------------------------------------------------------
# The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
# If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
# establish the cookie as shown at SharePoint Online Authentication
# -------------------------------------------------------------------------

# When creating, updating, and deleting SharePoint entities, we'll need
# to first get the server's form digest value to send in the X-RequestDigest header.
# This can be retrieved by making a POST request with an empty body to
# http://<site url>/_api/contextinfo and extracting the value of the
# d:FormDigestValue node in the XML that the contextinfo endpoint returns.

# Apparently, SharePoint needs an "Accept" request header equal to "application/xml",
# otherwise SharePoint will return an utterly incomprehensible and useless error message.
set savedAccept [CkHttp_accept $http]
CkHttp_put_Accept $http "application/xml"

# If your Sharepoint site is within a site collection, then use "https://SHAREPOINT_HTTPS_DOMAIN/sites/teamA/_api/contextinfo" where "teamA" is the name of the site.
# resp is a CkHttpResponse
set resp [CkHttp_PostXml $http "https://SHAREPOINT_HTTPS_DOMAIN/_api/contextinfo" "" "utf-8"]
if {[CkHttp_get_LastMethodSuccess $http] != 1} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkHttp $http
    exit
}

# Restore the default Accept header
CkHttp_put_Accept $http $savedAccept

if {[CkHttpResponse_get_StatusCode $resp] != 200} then {
    # A response status code not equal to 200 indicates failure.
    puts "Response status code = [CkHttpResponse_get_StatusCode $resp]"
    puts "Response body:"
    puts [CkHttpResponse_bodyStr $resp]
    delete_CkHttpResponse $resp

    delete_CkHttp $http
    exit
}

set xml [new_CkXml]

CkXml_LoadXml $xml [CkHttpResponse_bodyStr $resp]
delete_CkHttpResponse $resp

puts [CkXml_getXml $xml]

# The response XML looks like this:

# <?xml version="1.0" encoding="utf-8" ?>
# <d:GetContextWebInformation xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml" m:type="SP.ContextWebInformation">
#     <d:FormDigestTimeoutSeconds m:type="Edm.Int32">1800</d:FormDigestTimeoutSeconds>
#     <d:FormDigestValue>0x3059FFB920651834540F3E6792EA73F5746B302E953FF4E808E485DB1E6C2836C7CF924644995F092453B02A94DE14A7962674B7B16780AF16EAFB8C246BCDC7,12 Apr 2017 17:08:22 -0000</d:FormDigestValue>
#     <d:LibraryVersion>15.0.4569.1000</d:LibraryVersion>
#     <d:SiteFullUrl>https://SHAREPOINT_HTTPS_DOMAIN</d:SiteFullUrl>
#     <d:SupportedSchemaVersions m:type="Collection(Edm.String)">
#         <d:element>14.0.0.0</d:element>
#         <d:element>15.0.0.0</d:element>
#     </d:SupportedSchemaVersions>
#     <d:WebFullUrl>https://SHAREPOINT_HTTPS_DOMAIN</d:WebFullUrl>
# </d:GetContextWebInformation>
# 

# We'll use the d:FormDigestValue in the X-RequestDigest request header
# for the actual file upload.

# --------------------------------------------------------------------
# Now upload a file named "penguins2.jpg" to the "/Documents" folder.

set req [new_CkHttpRequest]

CkHttpRequest_put_HttpVerb $req "POST"
# Change "/Documents" to whatever folder is the destination.
# If your Sharepoint site is within a site collection, then use "/sites/teamA/_api/web/GetFolderByServerRelativeUrl('/sites/teamA/Documents')/Files/add(url='penguins2.jpg',overwrite=true)" where "teamA" is the name of the site.
CkHttpRequest_put_Path $req "/_api/web/GetFolderByServerRelativeUrl('/Documents')/Files/add(url='penguins2.jpg',overwrite=true)"
# Give the location of the file to be uploaded.  
# Note: The file is not loaded into memory at this point.  It is never fully loaded
# into memory.  Instead, the file data is streamed directly from the file when
# when the upload occurs.
CkHttpRequest_StreamBodyFromFile $req "qa_data/jpg/penguins2.jpg"

# Add the X-RequestDigest header field.
CkHttpRequest_AddHeader $req "X-RequestDigest" [CkXml_getChildContent $xml "d:FormDigestValue"]

# Set the Accept header
CkHttpRequest_AddHeader $req "Accept" "application/xml"

# Do the upload using https (TLS). Port 443 is the default port for https.
set bUseTls 1
set resp [CkHttp_SynchronousRequest $http "SHAREPOINT_HTTPS_DOMAIN" 443 $bUseTls $req]
if {[CkHttp_get_LastMethodSuccess $http] != 1} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkHttp $http
    delete_CkXml $xml
    delete_CkHttpRequest $req
    exit
}

# The response body contains XML.  Load it into our xml object..
CkXml_LoadXml $xml [CkHttpResponse_bodyStr $resp]

if {[CkHttpResponse_get_StatusCode $resp] != 200} then {
    puts "Response status code = [CkHttpResponse_get_StatusCode $resp]"
    puts [CkXml_getXml $xml]
    puts "Failed"
    delete_CkHttpResponse $resp

    delete_CkHttp $http
    delete_CkXml $xml
    delete_CkHttpRequest $req
    exit
}

delete_CkHttpResponse $resp

# Show the successful XML response.
puts [CkXml_getXml $xml]
puts "Success."

# A successful XML response looks like this:

# <?xml version="1.0" encoding="utf-8" ?>
# <entry xml:base="https://SHAREPOINT_HTTPS_DOMAIN/_api/" xmlns="http://www.w3.org/2005/Atom" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml">
#     <id>Web/GetFileByServerRelativeUrl('/Documents/penguins2.jpg')</id>
#     <category term="SP.File" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
#     <link rel="edit" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)" />
#     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Author" type="application/atom+xml;type=entry" title="Author" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/Author" />
#     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/CheckedOutByUser" type="application/atom+xml;type=entry" title="CheckedOutByUser" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/CheckedOutByUser" />
#     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ListItemAllFields" type="application/atom+xml;type=entry" title="ListItemAllFields" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/ListItemAllFields" />
#     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/LockedByUser" type="application/atom+xml;type=entry" title="LockedByUser" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/LockedByUser" />
#     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ModifiedBy" type="application/atom+xml;type=entry" title="ModifiedBy" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/ModifiedBy" />
#     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Versions" type="application/atom+xml;type=feed" title="Versions" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/Versions" />
#     <title />
#     <updated>2017-04-12T17:16:44Z</updated>
#     <author>
#         <name />
#     </author>
#     <content type="application/xml">
#         <m:properties>
#             <d:CheckInComment />
#             <d:CheckOutType m:type="Edm.Int32">0</d:CheckOutType>
#             <d:ContentTag>{FC8D1A58-9544-496C-8D9C-19B501A8B322},2,3</d:ContentTag>
#             <d:CustomizedPageStatus m:type="Edm.Int32">0</d:CustomizedPageStatus>
#             <d:ETag>"{FC8D1A58-9544-496C-8D9C-19B501A8B322},2"</d:ETag>
#             <d:Exists m:type="Edm.Boolean">true</d:Exists>
#             <d:Length m:type="Edm.Int64">99832</d:Length>
#             <d:Level m:type="Edm.Byte">255</d:Level>
#             <d:MajorVersion m:type="Edm.Int32">0</d:MajorVersion>
#             <d:MinorVersion m:type="Edm.Int32">1</d:MinorVersion>
#             <d:Name>penguins2.jpg</d:Name>
#             <d:ServerRelativeUrl>/Documents/penguins2.jpg</d:ServerRelativeUrl>
#             <d:TimeCreated m:type="Edm.DateTime">2017-04-12T17:14:19Z</d:TimeCreated>
#             <d:TimeLastModified m:type="Edm.DateTime">2017-04-12T17:16:44Z</d:TimeLastModified>
#             <d:Title m:null="true" />
#             <d:UIVersion m:type="Edm.Int32">1</d:UIVersion>
#             <d:UIVersionLabel>0.1</d:UIVersionLabel>
#         </m:properties>
#     </content>
# </entry>
# 
# 

delete_CkHttp $http
delete_CkXml $xml
delete_CkHttpRequest $req