vu materials scraper

lib/ingestors/ingestor_factory.rb

@@ -29,7 +29,8 @@ def self.ingestors
         Ingestors::RstIngestor,
         Ingestors::OsciIngestor,
         Ingestors::DccIngestor,
-        Ingestors::SenseIngestor
+        Ingestors::SenseIngestor,
+        Ingestors::VuMaterialIngestor,
       ] + llm_ingestors
     end
 

lib/ingestors/vu_material_ingestor.rb

@@ -0,0 +1,71 @@
+require 'open-uri'
+require 'csv'
+require 'nokogiri'
+
+module Ingestors
+  class VuMaterialIngestor < Ingestor
+    def self.config
+      {
+        key: 'vu_material',
+        title: 'VU Materials API',
+        category: :materials
+      }
+    end
+
+    def read(url)
+      begin
+        process_vu(url)
+      rescue Exception => e
+        @messages << "#{self.class.name} failed with: #{e.message}"
+      end
+
+      # finished
+      nil
+    end
+
+    private
+
+    def process_vu(url)
+      headers = {
+        'Host': 'vu.nl',
+        'Accept': 'application/json',
+        'Content-Type': 'application/json',
+        'api-version': '2020-06-30',
+        'Content-Length': 396,
+        'Origin': 'https://vu.nl',
+        'Referer': 'https://vu.nl/en/education/phd-courses'
+      }
+
+      data = {
+        "filter": "ItemType/any(c: search.in(c, 'Study', '|')) and ItemType/any(c: search.in(c, 'PhD', '|')) and Language eq 'EN'",
+        "search": '*',
+        "skip": 0,
+        "top": 1000
+      }
+
+      url = URI.parse('https://vu.nl/api/search')
+      http = Net::HTTP.new(url.host, url.port)
+      http.use_ssl = (url.scheme == 'https')
+      request = Net::HTTP::Post.new('https://vu.nl/api/search')
+      headers.each do |key, value|
+        request[key] = value
+      end
+      request.set_form_data(data)
+      request.body = data.to_json
+      request.content_type = 'application/json'
+      response = http.request(request)
+      materials_json = JSON.parse(response.body)['value']
+
+      # byebug
+      materials_json.each do |val|
+        material = OpenStruct.new
+        material.title = val['Title']
+        material.url = "https://vu.nl#{val['Url']}"
+        material.description = val['IntroText']
+        add_material(material)
+      rescue Exception => e
+        @messages << "Extract event fields failed with: #{e.message}"
+      end
+    end
+  end
+end

test/unit/ingestors/vu_material_ingestor_test.rb

@@ -0,0 +1,48 @@
+require 'test_helper'
+
+class VuMaterialIngestorTest < ActiveSupport::TestCase
+  setup do
+    @user = users(:regular_user)
+    @content_provider = content_providers(:portal_provider)
+    mock_ingestions
+    mock_timezone # System time zone should not affect test result
+  end
+
+  teardown do
+    reset_timezone
+  end
+
+  test 'can ingest materials from vu' do
+    source = @content_provider.sources.build(
+      url: 'https://vu.nl/en/education/phd-courses',
+      method: 'vu_material',
+      enabled: true
+    )
+
+    ingestor = Ingestors::VuMaterialIngestor.new
+
+    # check materials don't exist
+    new_title = 'Writing and presenting'
+    new_url = 'https://vu.nl/en/education/phd-courses/writing-and-presenting'
+    refute Material.where(title: new_title, url: new_url).any?
+
+    # run task
+    assert_difference('Material.count', 169) do
+      freeze_time(2019) do
+        VCR.use_cassette('ingestors/vu_material') do
+          ingestor.read(source.url)
+          ingestor.write(@user, @content_provider)
+        end
+      end
+    end
+
+    # check event does exist
+    material = Material.where(title: new_title, url: new_url).first
+    assert material
+    assert_equal new_title, material.title
+    assert_equal new_url, material.url
+
+    # check other fields
+    assert_equal 'In this course students will be trained in two important academic skills: writing, and presenting.', material.description
+  end
+end