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Initial Sharepoint integration #2
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# Sharepoint Provider | ||
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This provider will allow browse-everything to access Sharepoint on behalf of a specific user. | ||
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https://learn.microsoft.com/en-us/graph/auth-v2-user?tabs=http | ||
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Prerequisite: | ||
* App must be registered in the Entra Admin center to receive client_id, client_secret, and tenant_id. | ||
* If using .default endpoint as your scope, you must register API permissions for your application. Minimum permissions: | ||
* Files.Read | ||
* Files.Read.All | ||
* Files.Read.Selected | ||
* offline_access | ||
* openid | ||
* profile | ||
* Sites.Read.All | ||
* User.Read | ||
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To use the sharepoint provider add the following to config/browse_everything_providers.yml | ||
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``` | ||
sharepoint: | ||
client_id: [MyAppClientID] | ||
client_secret: [MyAppClientSecret] | ||
tenant_id: [MyAzureTenantID] | ||
redirect_uri: https://avalon_example.com/browse/connect | ||
scope: offline_access https://graph.microsoft.com/.default | ||
``` |
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require 'oauth2' | ||
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# BrowseEverything OAuth2 session for | ||
# Sharepoint provider | ||
module BrowseEverything | ||
module Auth | ||
module Sharepoint | ||
class Session | ||
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OAUTH2_URLS = { | ||
:site => 'https://login.microsoftonline.com', | ||
} | ||
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def initialize(opts={}) | ||
token_info = opts[:access_token]&.symbolize_keys | ||
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if opts[:client_id] | ||
@oauth2_client = OAuth2::Client.new(opts[:client_id], | ||
opts[:client_secret], | ||
{ | ||
authorize_url: authorize_url(opts[:tenant_id]), | ||
token_url: token_url(opts[:tenant_id]), | ||
redirect_uri: opts[:redirect_uri], | ||
scope: opts[:scope] | ||
}.merge!(OAUTH2_URLS.dup)) | ||
return if token_info.blank? | ||
@access_token = OAuth2::AccessToken.new(@oauth2_client, | ||
token_info[:token], | ||
{ | ||
refresh_token: token_info[:refresh_token], | ||
expires_in: token_info[:expires_in] | ||
}) | ||
end | ||
end | ||
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def authorize_url(tenant_id) | ||
tenant_id + "/oauth2/v2.0/authorize" | ||
end | ||
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def token_url(tenant_id) | ||
tenant_id + "/oauth2/v2.0/token" | ||
end | ||
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def get_access_token(code) | ||
@access_token = @oauth2_client.auth_code.get_token(code) | ||
end | ||
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def refresh_token | ||
@access_token = @access_token.refresh! | ||
end | ||
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def build_auth_header | ||
"BoxAuth api_key=#{@api_key}&auth_token=#{@auth_token}" | ||
end | ||
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# TODO: Figure out if these HTTP related methods are actually necessary | ||
def get(url, raw=false) | ||
uri = URI.parse(url) | ||
request = Net::HTTP::Get.new( uri.request_uri ) | ||
resp = request( uri, request, raw ) | ||
end | ||
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def delete(url, raw=false) | ||
uri = URI.parse(url) | ||
request = Net::HTTP::Delete.new( uri.request_uri ) | ||
resp = request( uri, request, raw ) | ||
end | ||
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def request(uri, request, raw=false, retries=0) | ||
http = Net::HTTP.new(uri.host, uri.port) | ||
http.use_ssl = true | ||
#http.set_debug_output($stdout) | ||
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if @access_token | ||
request.add_field('Authorization', "Bearer #{@access_token.token}") | ||
else | ||
request.add_field('Authorization', build_auth_header) | ||
end | ||
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request.add_field('As-User', "#{@as_user}") if @as_user | ||
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response = http.request(request) | ||
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if response.is_a? Net::HTTPNotFound | ||
raise RubyBox::ObjectNotFound | ||
end | ||
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# Got unauthorized (401) status, try to refresh the token | ||
if response.code.to_i == 401 and @refresh_token and retries == 0 | ||
refresh_token(@refresh_token) | ||
return request(uri, request, raw, retries + 1) | ||
end | ||
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sleep(@backoff) # try not to excessively hammer API. | ||
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handle_errors( response, raw ) | ||
end | ||
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def do_stream(url, opts) | ||
params = { | ||
:content_length_proc => opts[:content_length_proc], | ||
:progress_proc => opts[:progress_proc] | ||
} | ||
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if @access_token | ||
params['Authorization'] = "Bearer #{@access_token.token}" | ||
else | ||
params['Authorization'] = build_auth_header | ||
end | ||
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params['As-User'] = @as_user if @as_user | ||
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open(url, params) | ||
end | ||
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def handle_errors( response, raw ) | ||
status = response.code.to_i | ||
body = response.body | ||
begin | ||
parsed_body = JSON.parse(body) | ||
rescue | ||
msg = body.nil? || body.empty? ? "no data returned" : body | ||
parsed_body = { "message" => msg } | ||
end | ||
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# status is used to determine whether | ||
# we need to refresh the access token. | ||
parsed_body["status"] = status | ||
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case status / 100 | ||
when 3 | ||
# 302 Found. We should return the url | ||
parsed_body["location"] = response["Location"] if status == 302 | ||
when 4 | ||
raise(RubyBox::ItemNameInUse.new(parsed_body, status, body), parsed_body["message"]) if parsed_body["code"] == "item_name_in_use" | ||
raise(RubyBox::AuthError.new(parsed_body, status, body), parsed_body["message"]) if parsed_body["code"] == "unauthorized" || status == 401 | ||
raise(RubyBox::RequestError.new(parsed_body, status, body), parsed_body["message"]) | ||
when 5 | ||
raise(RubyBox::ServerError.new(parsed_body, status, body), parsed_body["message"]) | ||
end | ||
raw ? body : parsed_body | ||
end | ||
end | ||
end | ||
end | ||
end |
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May also require
Sites.Selected
when implementing sites. Will need to test .